User guide

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5 SIEMENS
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Connection to a PLC
External Device Setup Manual
5.4.2 S7-300/400 with Communication Module
The communication port settings for S7-300 and MICRO/I host port are as follows.
5.4.3 S7- 300 with MPI Interface
The communication port settings for S7-300 and MICRO/I host port are as follows.
Items Details
Interface Use the same settings as for the
MICRO/I.
RS232C
Baud Rate (bps) 1200, 2400, 4800, 9600, 19200 or 38400
Data Bits 8 (Fixed)
Parity Even, Odd or None
Stop Bits 1 or 2
BCC Enable or Disable
Priority Low
- MICRO/I type performs communication based on 3964 (R) and RK512 protocol.
- CP340 is supporting only the 3964 and 3964R protocol. Therefore when using CP340, it is necessary to construct the pro-
gram to realize RK512 protocol in PLC. This is programmed using the function blocks FB2 and FB3, in SIEMENS PLC.
- CP341 is supporting 3964 (R) and RK512 protocol, please choose RK512 by setup PLC.
- The program of CP340 refers to a sample program.
The sample program is recorded on CD-ROM after Wind O/I NV2 Ver2.50.
Please refer to the following folder.
(Wind O/I NV2 CD-ROM) /Sample/Host_if/SIEMENS/ Downloading from our Web site is possible.
Items Details
Interface Use the same settings as for the MICRO/I. RS422/485 2-wire
Baud Rate (bps) 19200 or 187500
Data Bits 8 (Fixed)
Parity Even (Fixed)
Stop Bits 1 (Fixed)
HG Node Address It should not be duplicated to other node addresses 1 - 126 (The default value is 1)
PLC Node Address Use the same settings as for the MICRO/I. 1 - 126 (The default value is 2)
Maximum MPI Address 1 - 126 (The default value is 31)