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The threads that wouldn't die...
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- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
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from the Automation List department...
Modbus with RS232???
Hi there,
In a project there are 7 PLCs communicating together with radio modems (output RS232) and the designer has considered CP341 (RS232) modules for the PLCs.
Q1: Does it work since we can not use any addressing? Can we use Modbus protocol with that module?
Q2: What shall we do to solve it? Change from RS232 to RS485 version?
In a project there are 7 PLCs communicating together with radio modems (output RS232) and the designer has considered CP341 (RS232) modules for the PLCs.
Q1: Does it work since we can not use any addressing? Can we use Modbus protocol with that module?
Q2: What shall we do to solve it? Change from RS232 to RS485 version?
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