siemens s7 200 communication

samirnadkarni · Mar 4, 2010

i want to print data on LX300 printer thro siemens s7 200 plc after 1min. pl guide me

sameer

jvdcande · Mar 4, 2010

samirnadkarni said:
i want to print data on LX300 printer thro siemens s7 200 plc

Not enough information: what interface are you using on the LX300, what interface are you intending to use on the S7-200?

Kind regrads,

samirnadkarni · Mar 5, 2010

jvdcande said:
Not enough information: what interface are you using on the LX300, what interface are you intending to use on the S7-200?

Kind regrads,

Sir i want to know how to write program in PLC

Thanks
Sameer:book:

BryanG · Mar 5, 2010

What jvdcande was asking is how are you going to connect the LX300 to the S7-200PLC. The printer will have a Parallel port, it might also have an RS232 port. The PLC will have an RS485 port, I don't know if Siemens do RS232 as an add on module. So without some method of converting RS485 to RS232, the printer and PLC can't talk to each other. Unless that is, you are planning to use digital outputs to directly drive the Parallel Port on the printer. Programming the RS485 Port is completely different to programming the digital outputs. So we can't even try to answer your questions until we know what you plan on doing.

Bryan

samirnadkarni · Mar 5, 2010

BryanG said:
What jvdcande was asking is how are you going to connect the LX300 to the S7-200PLC. The printer will have a Parallel port, it might also have an RS232 port. The PLC will have an RS485 port, I don't know if Siemens do RS232 as an add on module. So without some method of converting RS485 to RS232, the printer and PLC can't talk to each other. Unless that is, you are planning to use digital outputs to directly drive the Parallel Port on the printer. Programming the RS485 Port is completely different to programming the digital outputs. So we can't even try to answer your questions until we know what you plan on doing.

Bryan

Siemens PLC S7 200 having RS485 & connection will be with PPI cable of Siemens.:angr:

BryanG · Mar 5, 2010

Go into the Siemens manual - Chapter Instruction Set - Communication Instructions - Transmit and Receive Instructions (freeport). It tells you everything you need, complete with examples. Blind transmissions to a printer are very easy, once you have set up the Comms port you just use the XMT instruction to transmit a buffer of data.

Bryan

siemens s7 200 communication

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