the 1734-8CFGDLX module is a alarm

zhoudq

Member
Z
Join Date
Jul 2011
Location
JiangSu Province
Posts
75
hello，I have a project used the 1769-SDN module ,the 1769-SDN address is 0,the 1769-SDN is alarm ,the alarm code is 78 and 1 address.under the 1769-SDN have 8 modules.the address is form 1 to 8, the modules CAT. is 1734-8CFGDLX.now form 1 to 7 modules is ok, the eighth module network status is red light, please tell me ,How can I do be settled the problem. thanks!
 
Have you set up the scan list in the SDN to have all 8 modules or only 7 modules, you will need RSNetWorx for Devicenet to adjust the scanlist and the SDN needs to be in the idle state (not run mode).

After reading the fault code (78) it is not reading a device in the scanlist, if the number is alternating 78-1-78-1, then node one cannot be found on the network, you will definitly need to use RSNetWorx for DeviceNet to fault find this problem.

What Processor are you using, ML1500 or CompactLogix, if you are using CompactLogix you should be able to see the devices on the network when you are online.
 
Last edited:
Hello alan 505, thank you very much.I used the 1769-L32E processor, under the processor have 1769-SAN,1769-HSC,1769-OF2,1769-IQ32 and 1769-OB32,then 1769-L32E via Ethernet communication a panelview+.as the power on,the 1769-SAN is alternating display 78-1-78-1,it means the node one cann't found on the network.I used the RSNetWorx for Devicenet software setup the 1769-SAN and 8 modules(1734-8CFGDLX),scanlist are form 1to 8 node.save ,then I online.download the file to the 1769-SAN,but have a module network status is red light,the RSNetWorx for Devicenet alarm the one node is found.I changed the module to other install postion,the alarm red light is direct on this module,other modules is ok,the SAN alarm always is 78-1-78-1.I want to know How can i do ,the one node module network status is form red to the green.thank you.
 
zhoudq said:
Hello alan 505, thank you very much.I used the 1769-L32E processor, under the processor have 1769-SAN,1769-HSC,1769-OF2,1769-IQ32 and 1769-OB32,then 1769-L32E via Ethernet communication a panelview+.as the power on,the 1769-SAN is alternating display 78-1-78-1,it means the node one cann't found on the network.I used the RSNetWorx for Devicenet software setup the 1769-SAN and 8 modules(1734-8CFGDLX),scanlist are form 1to 8 node.save ,then I online.download the file to the 1769-SAN,but have a module network status is red light,the RSNetWorx for Devicenet alarm the one node is found.I changed the module to other install postion,the alarm red light is direct on this module,other modules is ok,the SAN alarm always is 78-1-78-1.I want to know How can i do ,the one node module network status is form red to the green.thank you.
Click to expand...
the attach file is RSNetWorx for Devicenet file.
 
I think you just have a duplicate Node Number problem.

Because your RSNetworx project shows just the scanner and the eight POINT modules, you must be using a 1734-PDN to connect the POINT modules directly to the DeviceNet.

My recommendation is to remove all but one POINT module, then scan the network and find out what node number it is. If it is not Node 1, change it to be Node 1 and cycle power to verify it stays that way.

Next, plug in all the rest of the POINT modules.

Next, in RSNetworx, open the Parameter Editor for Node 1 and select "Sequential Auto Address". This is near the bottom of the parameter list.

This will cause all of the POINT modules to re-number themselves automatically between 1 and 7.
 
hello Ken Roach, sorry I forgoteen I used a 1734-PND module between the 1769-SDN and the 1734-8CFGDLX . next I follow your advice to do.thank you!
 

Similar Topics

Z
About the 1734-8CFGDLX
Hello I use the 1769-SDN and the 1734-PDN ,under the 1734-PDN have 8 modules (the 1734-8CFGDLX,the node form 1to 8)),now from 1to 7 node module...
Replies
2
Views
1,961
zhoudq
Z
T
1734-IT2I Power Distribution Requirements
Looking at installing point io, with a 1734-AENTR communications adapter and ten 1734-IT2L modules. In IAB it installs a 1734-EP24DC after every...
Replies
1
Views
49
Mike Nash
M
D
Allen Bradley 1734-AENT issue
Hi everyone, new to forum. Since very long time i having issue with 1734-AENT module, after some period of time its keep stuck in error (simmilar...
2
Replies
16
Views
584
jstolaruk
J
A
1734-IE4C with isolated signals
I am trying to use the 4-20 mA signals from a device whose user manual says that it outputs "isolated 4-20 mA". I only have spare PLC inputs in a...
Replies
3
Views
228
A_G
A
S
Is it possible to add 1734-AENTR and its input, output card while CPU is in RUN?
Hello The plant is running and there is no shutdown nowadays therefore I can add 1734- AENTR and its card while PLC is in Run? I do not wanna...
Replies
8
Views
347
Renegade65
R
Back
Top Bottom