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link a MP277 to a S5-135U CPU928B

1/8/2013 4:23 PM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 3/17/2025 Posts: 8895 Rating: (1186)	Hello Daniel, In my opinion the MP277 does not have a RS232 interface. http://support.automation.siemens.com/WW/view/en/26011939/td See attachment (From catalog ST80) for the cable and connector to use. Best regards, Wizard Attachment C:\st_80_extract.pdf (255 Downloads)

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This contribution was helpful to 1 thankful Users dchartier

1/10/2013 3:48 PM	Rate (0)
Jonah Lau Posts: 33 Rating: (0)	Hi dchartier, What about the cables that I purchased from SIEMENS earlier? Can it be used? I got that from one of the forums that a gentleman had successfuly resolved his problem by using that cable. He had the similar configuration as mine. TQ. B.rgds. Jonah
Jonah Lau Posts: 33 Rating: (0)
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1/10/2013 3:50 PM	Rate (0)
Jonah Lau Posts: 33 Rating: (0)	Hi Wizard Yes, I did set those switches to the right configuration. TQ. B.rgds. Jonah
Jonah Lau Posts: 33 Rating: (0)
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1/10/2013 3:53 PM	Rate (0)
Jonah Lau Posts: 33 Rating: (0)	Hi Wizard, Yes. I did set according to that configuration. Could it be anything wrong with my configuration file? TQ. Jonah
Jonah Lau Posts: 33 Rating: (0)
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1/10/2013 4:08 PM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 3/17/2025 Posts: 8895 Rating: (1186)	Hi Jonah Lau, I guess you have set Connection parameters right. The only thing you can change is the Stop Bits, have you already tried? Which port in CPU is used for communication with panel? (Is it SI1) Best regards, Wizard

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1/11/2013 12:39 PM	Rate (0)
Jonah Lau Posts: 33 Rating: (0)	Hi Wizard, I haven't tried the stop bit yet. I'm using the SI1. Shall I try the stop bit? TQ. B.rgds. Jonah
Jonah Lau Posts: 33 Rating: (0)
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1/11/2013 1:30 PM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 3/17/2025 Posts: 8895 Rating: (1186)	Jonah Lau ....I haven't tried the stop bit yet. I'm using the SI1. Shall I try the stop bit? Hello Jonah Lau, Yes, please try it. I'm running out of options. Perhaps you should start a Support Request Best regards, Wizard

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1/12/2013 12:04 PM	Rate (0)
Jonah Lau Posts: 33 Rating: (0)	Hi Wizard, Many thanks and I can only try that next week. I will let you know the outcome. TQ. B.rgds.
Jonah Lau Posts: 33 Rating: (0)
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