flaming_toast
Member
Hello all, first time post, although this site has saved me many times cheers!
OK... my problem.
On site we have a GE 90-30 with 364CPU and a BEM331 Genius Bus Controller. This is connected to 2 VersaMax NIU's. There is one output card on each NIU, and they both randomly drop out for 1-5ms(plus some scan time I guess). No faults are logged in either fault table and I'm monitoring the GBC and NIU 'status bits' and they never go offline.
The Genius bus is under 2000ft, baud rate set at 153.6e on all devices. The cable is Belden Profibus 3079A (hope this isn't an issue) Using 150 ohm terminating resistors. All earthing and screens have been double checked. Been through all of GE's fault finding tips with no resolution to the issue.
Have installed the latest firmware on the CPU364, the BEM311 and NIU's are the latest revisions.
Now I'm trying to write some code to the GBC to read it's diagnostics. I'm getting a relpy from the COMMREQ '8 - Command terminated due to syntax error' and '210 - Command specified is not valid for GBC'. I've tried different commands and I get the same reply. I address it to the NIU and it times out.
I'm stuck, can anyone help?
Cheers, Alex.
OK... my problem.
On site we have a GE 90-30 with 364CPU and a BEM331 Genius Bus Controller. This is connected to 2 VersaMax NIU's. There is one output card on each NIU, and they both randomly drop out for 1-5ms(plus some scan time I guess). No faults are logged in either fault table and I'm monitoring the GBC and NIU 'status bits' and they never go offline.
The Genius bus is under 2000ft, baud rate set at 153.6e on all devices. The cable is Belden Profibus 3079A (hope this isn't an issue) Using 150 ohm terminating resistors. All earthing and screens have been double checked. Been through all of GE's fault finding tips with no resolution to the issue.
Have installed the latest firmware on the CPU364, the BEM311 and NIU's are the latest revisions.
Now I'm trying to write some code to the GBC to read it's diagnostics. I'm getting a relpy from the COMMREQ '8 - Command terminated due to syntax error' and '210 - Command specified is not valid for GBC'. I've tried different commands and I get the same reply. I address it to the NIU and it times out.
I'm stuck, can anyone help?
Cheers, Alex.
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