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Post by kovcis on Jun 28, 2021 6:43:14 GMT -5
Hello, we have a lake shore model 218 device installed on the device, so I would need to get it or its output serial line to plc S7-1500 which is via communication card S7-1500, CM PTP RS232 BA (6ES7540-1AD00-0AA0), cable will be S7 conn. cable RS232 - RS232C, 10M (6ES7902-1AC00-0AA0), I would need information about the composition of the communication or if there are GSD files for implementation directly into the plc and if there are already any libraries or if I will have to write the whole communication. topic of this communication I will do first.
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Post by Lake Shore Jeff M on Jun 28, 2021 7:13:56 GMT -5
There are no GSD files available for your desired application.
The Rs232 serial interface on the Model 218 is considered a DTE device, therefore, if the PLC is also a DTE device, you will need to use a Null Modem cable for the connection. If the PLC interface is a DCD, then a standard straight serial cable is needed.
The 218 RS232 settings are:
BAUD - Match what is set in the Model 218
Number of Data Bits = 7
Number of Stop Bits = 1
Parity = ODD
Flow Control = None
Communication is ASCII data and the command string is terminated with a Carriage Return followed by a Line Feed Character
For additional information, please read the Remote Communicatons chapter in the Model 218 User Manual
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Post by kovcis on Jun 28, 2021 7:20:51 GMT -5
Thank you.
I'm a novice technician as I know if the plc is in DTE or DCD mode
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Post by Lake Shore Jeff M on Jun 28, 2021 7:32:19 GMT -5
Basically, if the PLC User Manual does not say, you can look at the RS232 wiring. On the Model 218, the 9-pin connections used for the RS232 interface have the receive data on Pin #2 and the Transmit data on Pin #3. From the PLC, the transmit data lead needs to connect to pin #2 on the 218 and the receive data lead needs to connect to pin #3
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Post by Lake Shore Ryan on Jun 28, 2021 8:13:38 GMT -5
And if it all just gets too frustrating, there is always our 240-8P temperature input module which has a native PROFIBUS DP-V0 interface and a GSD file to get it configured on your network.
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Post by kovcis on Jun 28, 2021 22:36:55 GMT -5
Thank you very much.
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