Standard communication configuration schemes for Siemens series PLCs

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Section 1: Standard Communication Configuration for Siemens Series PLCs. The KingView software for Siemens S7200 PLCs can communicate with the S7200 PLC through the following communication channels. The details are as follows: 1. Serial communication method – Hardware connection: This method utilizes the PPI programming port on the S7200 series PLCs, with a Siemens standard programming cable or a standard 485 cable being used to connect it to the computer’s serial port. When using the computer’s RS232 communication port, it is recommended to use a Siemens-specific purple cable and network connectors, along with a standard active RS485/232 conversion module (such as the ADAM4520 from Advantech) to establish a connection between the PLC’s 485 port and the computer’s standard 232 port； When using a computer to expand the RS485 port: it is recommended to use Siemens’ dedicated purple cables and network connectors to directly connect the PLC’s RS485 programming port with the computer’s RS485 port. Note: Of the 9 pins on the PPI port of the PLC, 3 are for DATA+ ； 8―DATA―Applicable scenarios: It is generally suitable for situations where direct serial communication takes place between a PLC and a PC, with the PLC and the PC being located relatively close to each other ； The corresponding drivers for KingView (there are 3 commonly used direct drivers): (1) PLC → Siemens → S7-200 series → PPI; (2) PLC → Siemens → S7-200 series → Free port; (3) PLC → Siemens → S7-200 series → Modbus. Special software requirements: The computer on which KingView is installed does not need to have the S7-200 programming software installed. The specific configurations for each can be set according to the instructions provided by the KingView corresponding drivers. Note: Due to the special nature of the PPI protocol, it generally takes 400 MS to read a data packet. When users report that the PPI communication speed is slow, use this standard to determine whether such a slow communication speed is within an acceptable range ； If the user is still not satisfied within the reasonable range supported by this drive, it is recommended to switch to free port or Modbus communication. When users use the free port or Modbus communication drivers, it is necessary to download the corresponding protocol program into the PLC, and this program is provided by YAKONG. Users must continue to develop their own logical control programs based on this communication protocol; the registers used in such programs must not conflict with the V-area addresses occupied by the protocols provided by SubControl, as well as those used by devices from major manufacturers and communication buses. The PLC’s standard interface protocol defaults to using addresses V300 and earlier ； The PLCModbus protocol program uses addresses from V1000 and earlier. 2. Hardware connection via MPI communication card: In this approach, the programming port on the S7200 PLC is used, and a Siemens CP5611 (or CP5613 or other MPI communication cards – the specific type depends on the type and number of PLCs, with Siemens determining which communication card to use) is installed in the computer. It is recommended to use the standard conversion adapters and communication cables provided by Siemens to establish the hardware connection between the communication card and the PLC ； The typical communication distance for such links is 50 meters; if this distance is exceeded, please consult Siemens to purchase a repeater to extend the communication range. Applicable scenarios: Generally suitable for situations where one PC communicates with multiple PLCs ； Alternatively, multiple PLCs can be connected to multiple PCs (MPI is a multi-point interface protocol that allows multiple host PCs to communicate via MPI; the exact maximum number of host PCs that can be supported should be determined in consultation with Siemens). ） ； Configurator corresponding driver: In Configurator, the device definition wizard is as follows: PLC → Siemens → S7-200 series → S7-200MPI (communication card). Special software requirements: The computer on which KingView is installed must have the STEP7 programming software installed. The specific configuration can be carried out by following the instructions provided in the corresponding driver documentation for KingView (for notes related to the version of KingView, please refer to the section on MPI driver usage for S7300/400 PLCs in Section 2). 3. Hardware connection via Ethernet communication: This method uses the CP243-1 Ethernet module, which is available as an expansion for the Siemens S7200. The PC can use a standard Ethernet card or an Ethernet card such as the CP1613 provided by Siemens; the PLC and the PC are connected to each other through an Ethernet cable. Applicable scenarios: Generally used in situations where high communication speeds are required ； The communication distance is within the allowable range for a local area network. There are two communication methods supported by KingView: (1) Direct driver provided by KingView: The corresponding device definition wizard in KingView is PLC􀃆Siemens→S7-200 series→TCP. Special software requirements: None. That is, there is no need to install STEP7 or Simatic Net communication software on the computer where KingView is installed; this driver was not available on the discs released for KingView 6.52 and earlier versions ； It is provided by default in versions of KingView 6.52 and later. (2) Using OPC for communication with KingView: It is necessary to have Simatic Net 6.0 or a later version of the Ethernet-based licensed software provided by Siemens installed on the local machine. This software provides OPCServer functionality and communication with the upper-level KingView system. For specific details, please refer to the relevant OPC configuration documents issued by Siemens or YAKON. 4. Profibus – DP communication: For this method, the DP interface on the Siemens PLC is used (it can be either a DP interface integrated into the CPU or an external DP communication module), and a communication card such as the CP5611 or CP5613 is installed in the computer. The card and the DP interface of the PLC are connected using Siemens-standard network connectors and communication cables. Generally, a single communication card can connect to multiple PLCs via the DP bus; the exact number of devices that can be connected should be confirmed with Siemens based on the device model. When communicating in this manner, it is necessary to have the STEP7 programming software installed on the local machine, along with the communication configuration software and licenses for Simatic Net 6.0 (or a later version). And using the STEP7 programming software, the DP interface on the PLC is configured for the DP protocol (Slave station) ； Configure the CP5611 (or CP5613 card) as a DP protocol device (as the master station) through the Set PG/PC interface ； Applicable scenarios: Generally used in situations with low data exchange volumes but high speed requirements ； There are two communication methods supported by KingView: (1) Direct driver provided by KingView: The corresponding device definition wizard in KingView is: PLC → Siemens → S7-200 series → Profibus -> DP. This driver only supports the DP communication card to be configured as the unique master station; all PLCs and similar devices must be set in slave mode. It also allows only one upper-level configuration unit, KingView, to communicate with all the slave PLCs. Special software requirements: Simatic Net 6.0 (or a later version) of the DP-based licensed communication software must be installed on the computer where KingView is located. For specific usage instructions, please refer to the driver help documentation included with KingView version 6.52 or later. (2) Using OPC for communication with KingView: It is required to have Simatic Net 6.0 or a later version, a DP-based licensed software provided by Siemens, installed on the local machine. This software provides OPCServer functionality and communication with the upper-level KingView system. For specific details, please refer to the relevant OPC configuration documents issued by Siemens or YAKON. 5. Profibus – S7 communication method hardware connection: This approach uses the DP interface on the Siemens PLC (it can be either the DP interface integrated into the CPU or an external DP communication module), with a communication card such as the CP5611 or CP5613 being installed in the computer. In communication systems, the equipment from typical manufacturers is connected to the communication bus cards and the DP interfaces of PLCs using Siemens-standard network connectors and communication cables. Generally, a single communication card can connect to multiple PLCs via the DP bus; the exact number of devices that can be connected should be confirmed with Siemens based on the device model. Applicable scenarios: Generally used in situations where high data communication speeds are required. There are two communication methods supported by KingView: (1) Direct driver provided by KingView: The corresponding device definition wizard in KingView is: PLC → Siemens → S7-200 series → Profibus → S7. Special software requirements: The STEP7 programming software needs to be installed on the computer where KingView is located, but the SIMATIC NET software is not required ； For specific usage instructions, please refer to the driver help documentation included in KingView 6.52 or later versions. (2) Using OPC for communication with KingView: It is required to have Simatic Net 6.0 or a later version, an S7-based licensed software provided by Siemens, installed on the local machine. This software provides OPCServer functionality and communication with the upper-level KingView system. For specific details, please refer to the relevant OPC configuration documents issued by Siemens or YAKON. Both of the above communication methods support simultaneous communication with multiple upper-level machines using KingView. For the exact number of such machines, users should consult Siemens. As of now, it is known that the following configurations are supported: Modicon -> Modbus RTU -> Serial port (2); PLC -> Siemens -> S7-200 series -> EM241 Modbus RTU -> Serial port. Special note: The communication can be configured using standard Modem communication methods. The documentation provided with EM241 includes a table showing the correspondence between the various V, I, and Q registers of the PLC and the Modbus function code addresses. When defining variables in KingView, it is sufficient for their registers to match the Modbus addresses specified in the document; this allows reading values from PLC addresses such as V, I, and Q. Section 2: Communication between KingView and Siemens S7300/S7400 series PLCs KingView supports communication with S7300 and S7400 series PLCs via various communication channels, as detailed below: 1. MPI cable communication – Hardware connection: This method utilizes the MPI programming ports on the S7300 and S7400 PLCs, with Siemens’ standard programming cables used to connect them to the computer’s serial port or USB interface ； Applicable scenarios: It is generally suitable for situations where a PLC and a PC communicate directly via serial port, with the PLC and the PC being relatively close to each other ； Corresponding driver for KingView: In KingView, the device definition wizard is as follows: For the S7300 series: PLC→Siemens→S7-300 series→MPI (serial port); PLC→Siemens→S7-300 series→MPI (USB). For the S7400 series: PLC→Siemens→S7-400 series→MPI (serial port); PLC→Siemens→S7-400 series→MPI (USB). Special software requirement: The computer on which KingView is installed must have the STEP7 programming software installed. 2. Hardware connection via MPI communication card: In this approach, the MPI programming port on the PLC is used, and a Siemens CP5611 (or CP5613 or other MPI communication cards – the specific type depends on the type and number of PLCs, with Siemens determining which communication card to use) is installed in the computer. A standard conversion connector and communication cable provided by Siemens are generally used to establish the hardware connection between the communication card and the PLC ； Applicable scenarios: Generally suitable for situations where one PC communicates with multiple PLCs ； Alternatively, multiple PLCs can be connected to multiple PCs (MPI is a multi-point interface protocol that allows multiple host PCs to communicate via MPI; the exact maximum number of host PCs that can be supported should be determined in consultation with Siemens). ） ； Configuration King corresponding drivers: In Configuration King, the device definition wizard is as follows: PLC→Siemens→S7-300 series→S7-300MPI (communication card); PLC→Siemens→S7-400 series→S7-400MPI (communication card). Special software requirements: The computer on which Configuration King is installed must have the STEP7 programming software installed. The specific configuration can be carried out by following the instructions provided in the corresponding driver documentation for KingView. 3. Hardware connection for Ethernet communication: This method uses the CP343-1 Ethernet module, which is available as an expansion option for the Siemens S7300, or the CP443-1 Ethernet module, which is available as an expansion option for the S7400 PLC ； On a PC, a standard Ethernet card or an Ethernet card such as the CP1613 provided by Siemens can be used; the PLC and the PC are connected to each other via an Ethernet cable. There is no need to install the STEP7 programming software on the local machine, nor the communication configuration software for Simatic Net 6.0 (or higher versions) ； Applicable scenarios: Generally used in situations where high communication speeds are required ； The communication distance is within the allowable range for a local area network. There are two communication methods supported by KingView: (1) Direct driver provided by KingView: The corresponding device definition wizard in KingView is: PLC → Siemens → S7-300 series → TCPPLC → Siemens → S7-400 series → TCP. Special software requirements: None. In other words, there is no need to install STEP7 or Simatic Net communication software on the computer where KingView is installed; for specific usage instructions, please refer to the driver help documentation included with KingView version 6.52 or later. (2) Using OPC for communication with KingView: It is necessary to have Simatic Net 6.0 or a later version of the Ethernet-based licensed software provided by Siemens installed on the local machine. This software provides OPCServer functionality and communication with the upper-level KingView system. For specific details, please refer to the relevant OPC configuration documents issued by Siemens or YAKON. 4. Profibus – DP communication: For this method, the DP interface on the Siemens PLC is used (it can be either a DP interface integrated into the CPU or an external DP communication module), and a communication card such as the CP5611 or CP5613 is installed in the computer. The card and the DP interface of the PLC are connected using Siemens-standard network connectors and communication cables. Generally, a single communication card can connect to multiple PLCs via the DP bus; the exact number of devices that can be connected should be confirmed with Siemens based on the device model. When communicating in this manner, it is necessary to have the STEP7 programming software installed on the local machine, along with the communication configuration software and licenses for Simatic Net 6.0 (or a later version). And using the STEP7 programming software, the DP interface on the PLC is configured for the DP protocol (Slave station) ； Configure the CP5611 (or CP5613 card) as a DP protocol device (as the master station) by using the Set PG/PC interface ； Applicable scenarios: Generally used in situations with low data exchange volumes but high speed requirements ； There are two communication methods supported by KingView: (1) Direct driver provided by KingView: In KingView, the corresponding device definition wizard is: PLC􀃆Siemens􀃆S7-300 series􀃆DPPLC􀃆Siemens􀃆S7-400 series DP. This driver only allows the DP communication card to be set as the unique master station; all PLCs and similar devices must be set in slave mode, and it supports communication only between one master unit, namely KingView, and all slave PLCs. Special software requirements: Simatic Net 6.0 (or a later version) of the DP-based licensed communication software must be installed on the computer where KingView is located. For specific usage instructions, please refer to the driver help documentation included with KingView version 6.52 or later. (2) Using OPC for communication with KingView: It is required to have Simatic Net 6.0 or a later version, a DP-based licensed software provided by Siemens, installed on the local machine. This software provides OPCServer functionality and communication with the upper-level KingView system. For specific details, please refer to the relevant OPC configuration documents issued by Siemens or YAKON. 5. Profibus – S7 communication method hardware connection: This approach uses the DP interface on the Siemens PLC (it can be either the DP interface integrated into the CPU or an external DP communication module), with a communication card such as the CP5611 or CP5613 being installed in the computer. A Siemens-standard network connector and communication cable are used to connect the communication card to the DP interface of the PLC. Generally, a single communication card can connect to multiple PLCs via the DP bus; the exact number of devices that can be connected should be confirmed with Siemens based on the device model. Applicable scenarios: Generally used in situations where high data communication speeds are required. There are two communication methods supported by KingView: (1) Direct driver provided by KingView: The corresponding device definition wizard in KingView is: PLC􀃆Siemens􀃆S7-300 series􀃆S7PLC􀃆Siemens􀃆S7-400 series􀃆S7. Special software requirement: STEP7 programming software needs to be installed on the computer where KingView is running, but SIMATIC NET software is not required ； For specific usage instructions, please refer to the driver help documentation included in KingView 6.52 or later versions. (2) Using OPC for communication with KingView: It is required to have Simatic Net 6.0 or a later version, an S7-based licensed software provided by Siemens, installed on the local machine. This software provides OPCServer functionality and communication with the upper-level KingView system. For specific details, please refer to the relevant OPC configuration documents issued by Siemens or YAKON. Both of the above communication methods support simultaneous communication with multiple KingView master units; the exact number is subject to consultation between the user and Siemens. The current known limit for the number of supported master units is…