adccommunitymod (AutomationDirect) asked a question.
Modbus Simulator
Created Date: January 24,2008
Created By: teritask
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Can any suggest a Modbus TCP/IP simulator so I can try to communicate with my CMore via Modicon Modbus? I'm still at a loss as to how to communicate with my CMore through Modbus Ethernet. My post from a few days ago details what I'm trying to do using Labview. Thanks for any help.
Created Date: January 24,2008
Created by: OpZed
Modbus Slave from www.modbustools.com seems to work very well. It has serial and ethernet modes. The demo is time limited to 10minutes per session I think.
Created Date: January 24,2008
Created by: teritask
Thanks...I just downloaded it a few minutes before I received your reply. I still cannot connect to the CMore. This is driving me nuts! It seems like it wants to be connected to a PLC only. I have the PLC-001: PLC Communication Timeout error message up in the corner also. I know it's not a grounding issue...already been checked out.
I hope I don't have to scrap the idea of using a CMore because I really like easy they are to program and it looks nice on the machine I'm designing. I have to get this job shipped next week so I'm kind of in a crunch situation.
I downloaded just about every modbus simulator I could find but none of them communicate with the CMore.
Time to switch my searching to Labview compatible touch screens! (I don't like the ones NI offers).
Created Date: January 24,2008
Created by: jackson
I just connected C-more to Modbus Slave from www.modbustools.com. Works like a charm.
Can you post your exact settings for both sides?
IP addresses, settings, etc...
Created Date: January 24,2008
Created by: teritask
Which one did you use, Modbus Slave or Modbus Poll?
Created Date: January 24,2008
Created by: OpZed
Modbus Slave
C-more is a modbus master, it sends requests out and expects replys back from the slave devices.
Created Date: January 24,2008
Created by: teritask
CMore settings: (forgot you cannot attach files in this forum)
PLC Protocol: Modicon Modbus TCP/IP Ethernet
IP Address: 130.151.217.5
PLC Port: 502
PLC Slave Number: 1
all the rest are the default settings
Created Date: January 24,2008
Created by: teritask
That's the one I'm trying to use. The only setting for TCP/IP is the port, which I set to 502.
Created Date: January 24,2008
Created by: teritask
I get the error message:
Modbus/TCP Connection Failed: bind-error 10048.
I also tried the Master one which didn't work either. Am I missing a setting in the CMore? I still have the PLC timeout error at the top of the screen. Like I said, I know it's not a grounding issue.
Thanks.
Created Date: January 24,2008
Created by: OpZed
Are you programming C-more through USB or Ethernet? What is the IP address/Subnet Mask of C-more? Can you ping the C-more IP from your PC?
Created Date: January 24,2008
Created by: teritask
Ethernet. Yes, I can ping the CMore.
I have 3 items on my network hub (no internet):
Computer: 130.151.217.4
CMore: 130.151.217.5
PXI: 130.151.217.2
Subnet mask: 255.255.255.0 on all.
I noticed the Port info in the CMore also has:
Default gateway: (blank)
DNS Server: Automatically
Can these settings be a problem?