Posted 25 Sep 2014 Hello guys, actually I am new to this Omron PLC. but i have small project to transmit a command to the GSM modem via the RS232 port so it can trigger the modem to send text msg. Can you show me the steps/guide/sample program to accomplish this program coding? I already read some topic in this forum regarding to this PLC RS232 port but still cant get the ideas when to create the ladder program. PLC Type : CJ1H (CPU65H) - RS232 port First input to trigger the GSM send text msg: AT+CMGS="+YOUR HP NUMBER" Second input to trigger GSM send text msg: YOUR TEXT MSG CONTAINS (Ctrl+z to send) Many Thanks, AlexB Share this post Link to post Share on other sites
Posted 17 Nov 2014 Use the send command. Is this a Westermo. If so you will have to initialise the modem first. Share this post Link to post Share on other sites
Posted 18 Nov 2014 http://forums.mrplc.com/index.php?app=downloads&showfile=205 Share this post Link to post Share on other sites