Manual

Troubleshooting
Chapter 7
735
diagnostic message codes are displayed by indicators connected to module group 5, slot 1 (figure 6.18), or by displaying the corresponding
data table word using the industrial terminal.
Use this table in conjunction with figure 7.1 and figure references shown in parentheses.
T ype of Message
N = Nonlatched
L = Latched
T = T rip Condition
Code
P = at Powerup
Alt = Alternate chassis
Ethr = Either chassis
Top = T op chassis
Bot = Bottom chassis
Binary Diagnostic Message (figure References) CodeTypeHex
11 10 01 10 E6 T Aux. valve stem signal of f when triacs are on.
1
11 10 01 11 E7 T Alt Aux. valve stem signal of f when triacs are on.
1
11 10 1000 E8 T Dump valve stem signal of f when traics are on.
1
11 10 1001 E9 T Alt Dump valve stem signal of f when traics are on.
1
11 10 1010 EA T Main valve stem signal remains on after triacs turn of f.
1
11 10 101 1 EB T Alt Main valve stem signal remains on after triacs turn of f.
1
11 10 1 100 EC T Aux. valve stem signal remain on after triacs turn of f.
1
11 10 1 101 ED T Alt Aux. valve stem signal remain on after triacs turn of f.
1
11 10 1 110 EE T Dump valve stem signal remains on after traics tuirn of f.
1
11 10 1 111 EF T Alt Dump valve stem signal remains on after traics tuirn of f.
1
Hardware or Cable Fault
111 1 0000 F0 T Alt Chassis power tripped or chassis restarted. (6.1, 6.6)
111 1 0001 F1 L Lost communications between 1771PM modules. Reset latched message, check cables, or
cycle power . (3.3)
111 1 0010 F2 L Lost communications with PC. Reset latched mesage, check cables, or cycle power . (3.3)
111 1 001 1 F3 L Alt Lost communications with PC. Reset latched mesage, check cables, or cycle power . (3.3)
111 1 0100 F4 N Lost communications between 1771PM modules.
2
111 1 0101 F5 N Hardware fault in 1771PM module. Replace it.
111 1 01 10 F6 N T urn of f backplane switch 1. (3.4)
111 1 01 11 F7 N Hardware fault in 1771PM module.
2
111 1 1000 F8 N Not used
111 1 1001 F9 N Hardware fault in 1771PM module.
2
111 1 1010 FA N 1771PM modules must be same revision.
111 1 101 1 FB N Hardware fault in 1771PM module. Replace it.