1761-Net-ENI and SLC 5/03

[brubingh 0]

I have a 1761-Net-ENI connected to a SLC 5/03. To make a long story short, I can't see the 5/03 on the network. RSLinx sees the Net-ENI in the AB_ETH-1 interface, although it usually displays Comm. error 01E00204, but not the 5/03. I'm assuming the comm error is because it can't find the 5/03, but maybe that is not so. RSLinx shows the right icon for the ENI and gives the Device Type as ENI. Here are the details: 1761-Net-ENI series A Used 1761-Cbl-PM02 to serial port on my laptop to configure the Net-ENI. No problems. Then moved cable to 5/03. RSLinx 2.40.00 sees the Net-ENI fine, but no 5/03. I forced the 232 Baud rate in the ENI to 19200 to match the 5/03. Still doesn't work. Message Routing in ENI-ENIW Util I left unconfigured since I'm not sending messages from the 5/03. I plan to use it to send emails but also want to be able to program over ethernet. I don't know what else to say, except that I can't program it over ethernet like I want to. I haven't tried to send email from the 5/03 yet, so can't say if that works. I know the ethernet works because I can ping the Net-ENI and it responds. I know the 1761-Cbl-PM02 works because I used that connected to my laptop to configure the ENI, so it should work to the 5/03 also. I have not verified that the serial port on the 5/03 works. That could be faulty. But I have it configured for DF1 Full Duplex, 19200 baud, No parity, 1 stop bit, node 0, No handshaking control line, CRC Error detection, Embedded responses Enabled, Duplicate Packet Detect Enabled, ACK timeout 50, 3 NAK retries, 3 ENQ retries. I noticed in the ENI manual that another series A ENI is required when connected to a PC in order to program Compact Logix controllers, but I think that only applies to Compact Logix, right? Thanks for any advice.

[Ken Roach 194]

The problem is likely on the Ethernet side because of the 0x0204 error code. Error code 0x0204 is always a straightforward timeout. If RSLinx displays a red X over a device icon or the error code 0x0204, RSLinx cannot communicate with the device at all over Ethernet. PING is a simple connectivity test but it doesn't tell you everything. Try pointing a web browser at the Net-ENI's IP address to see if the device responds to HTTP.