CS1G RS232 to Smart Motor Not Communicating

valerianlin

Member
Join Date
Feb 2017
Location
ontario
Posts
18
Hi there,
I am trying to get my CS1G plc to talk with an animatics smart motor. What I am trying to achieve is to send the letter 'G' to the smart motor so the led will go from red to green just so I know it is talking with the rs232. Here is what I've accomplished so far.

Used hyperterminal to make sure the built in rs232 is outputting the correct ascii which it is. Used hyperterminal to send the letter G to the smart motor, connected to the computer using a serial to usb adapter, which changed the led from red to green. I should mention the smart motor has a female rs232 port.

Now here is what I am stuck on. When I send 'G' through the built in rs232 port, nothing happens to the smart motor led. This is the current cable connection that I have

PLC | Smart Motor
2(TX)-3(RX)
3(RX)-2(TX)
9(SG)-5(SG)

On the plc side, 4 and 5 are shorted.
In the attached pictures below shows screenshots from the smart motor manual stating that no handshake protocol is needed. DTR,DSR,RTS,CTS. I tried them anyways with no results. Made sure all the communications settings were correct. I cannot think of a possible reason why this would not work.
Would anybody have any insight?
Thanks

Capture.JPG capture2.JPG
 
Last edited:
From your first pic it appears your connection should be:

PLC | Smart Motor
3(TX)-4(RX)
2(RX)-3(TX)
5(SG)-5(SG)

However, the way currently have it wired is more typical and would have been my first guess.
 
I forgot to mention the picture on the right is the power connector with 7 pins. There is a rs232 cable that branches off from that cable. So pin 3 of power connector goes to pin2 of rs232, pin4 goes to pin 3 of rs232.
 

Similar Topics

I was called out to a site today that I had never been to before. They have an Omron CS1G-CPU43H that was communicating to a NT21-ST121B-E HMI via...
Replies
1
Views
1,450
I am working on a project and our Omron HMI looks for an address to set of an event in the log. example address is 1234.12 However in the PLC...
Replies
1
Views
1,261
Hi all, I just had a question about the CS1G CPU43 and a on a time restraint. I have read the manual and found that to connect to this I need a...
Replies
2
Views
4,035
Hello, I am fairly new to PLCs and have little experience with them so I thought if anyone here could help it would be great. The project that I...
Replies
1
Views
2,348
Can anyone tell me what software (CX-Programmer?) and cable I would need to upload the program from a CS1G-CPU42H? I assume that there will be no...
Replies
3
Views
2,110
Back
Top Bottom