Omron CJ2M PLC with CJ1W-ETN21 card

Jothiswarup

Member
Join Date
Apr 2014
Location
Somewhere
Posts
33
Hello everyone,

I would like advice on the setup below:

  • CJ2M PLC: 192.168.10.01 (Subnet: 255.255.255.0)
  • ETN21 - 192.168.20.1 (Subnet: 255.255.255.0)

PLC is collecting tag data from 192.168.10.XXX network and needs to send/receive to 192.168.20.XXX network. How should I configure the send and receive instructions?

Thank you
 
Hello everyone,

I would like advice on the setup below:

  • CJ2M PLC: 192.168.10.01 (Subnet: 255.255.255.0)
  • ETN21 - 192.168.20.1 (Subnet: 255.255.255.0)

PLC is collecting tag data from 192.168.10.XXX network and needs to send/receive to 192.168.20.XXX network. How should I configure the send and receive instructions?

Thank you

Are they on the same LAN i.e. "physical" (logical) ethernet? If so, the Subnet could be 255.255.224.0.

Otherwise, they will need their gateways configured.

Caveat: if this is Ethernet/IP, I am assuming the routing is similar to TCP/IP.
 
Thanks for the reply. I have the RECV function working. I am stuck on the next part.

The RECV function needs CJ2M unit number set to 0

I am also using Omrons FB for MODBUS TCP from ETN21. This also requires unit number set to 0.

How can I make the RECV function on CJ2M work if I set unit number to 1?
 
Hello,

CJ2M was unit 0, on same network as other PLCs and used RECV instruction.
ETN21 was on seperate network and used MTCP_ETN_Server function block.
Routing table was used to set different networks.

If it is between two Omron PLCs, there is also software (I cannot recall the name) which will do FINS transfer between tags and you will not need SEND/RECV instructions.
 

Similar Topics

I have PLC Omron CJ2M with OD211 module. I want to use the pulse output and PWM output and this module. But i confuse how to activated this, i...
Replies
0
Views
75
I have a project to control the speed of motor DC using PWM Output on PLC and when im on working i have a several trouble and of of them is the...
Replies
6
Views
168
Hi all, Anyone know how to access PLC Omron data memory Using SNMP? I use CJ1M-EIP21 for SNMP communication, but don't have MIB or OID file to...
Replies
0
Views
656
Hey guys, I'm new to PLC, Although I was wondering if I could establish a handshake between the CJ2M and Raspberry pi over Ethernet...
Replies
4
Views
2,361
Howdy, I’m working with an Omron CJ2M PLC and am hoping you can point me in the right direction… I’m trying to get the NS10 HMI/PT to talk to...
Replies
2
Views
1,388
Back
Top Bottom