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The threads that wouldn't die...
- PC reliability?
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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 Protang AB, Sweden department...
Modbus Diagnostics
With Modbus TCP/IP communication, it is possible to have multiple sessions connected to one channel in a Modbus device?
The Modbus device has diagnostic information, see FC 8.
How shall this diagnostic info be used (or implemented), what belongs to the channel and what belongs to the session?
For example, if sub-function 0x0a Clear Counters is sent from one session, shall then also the corresponding channel diagnostic counters be cleared? But the channel may be used by other sessions...?
Does anyone have any experience with this?
The Modbus device has diagnostic information, see FC 8.
How shall this diagnostic info be used (or implemented), what belongs to the channel and what belongs to the session?
For example, if sub-function 0x0a Clear Counters is sent from one session, shall then also the corresponding channel diagnostic counters be cleared? But the channel may be used by other sessions...?
Does anyone have any experience with this?
From Control Engineering magazine...
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