TROUBLESHOOTING
DIAGNOSTICS
I-E96-613A
5 - 7
An additional module is required for I/O expander bus com-
munication tests. To do this test:
1. Set the dipswitches on the IMDSO04 (DSO) module and the
IPT module to the settings in Table
.
2. Insert the DSO module in the same module mounting unit
as the IPT module.
3. There must be continuity between the DSO module and the
IPT module on the I/O expander bus (i.e., I/O expander bus
dipshunts inserted with straps intact between the DSO and IPT
modules). The modules do not need to be in adjacent slots.
An additional NTMP01 termination unit, NIMP01 or NIMP02
termination module is required for redundancy link and
SAC/DCS link tests.
Dipswitch Selection
Pole one of dipswitch SW4 must be set to one (OFF position) to
put the module into the diagnostic mode. The remaining poles
are used to select module address and Controlway or module
bus communication. They should remain in their normal oper-
ating position. Dipswitch SW1 enables or disables the halt on
error feature and selects the diagnostic test. Figure
shows
the definition of the dipswitch poles.
On dipswitch SW1, poles three through eight select the diag-
nostic test. Pole eight is the least significant bit (binary weight
one), pole three is the most significant bit (binary weight 32).
Refer to Table
for test ID values. Pole one selects a halt on
error feature. When enabled, the IPT module will halt test exe-
cution whenever the selected test detects an error. The number
of the failing test is displayed on the group B LEDs (see Figure
). The group A LEDs display the pass/fail count.
Table 5-12. DSO and IPT Module Setup
for I/O Expander Bus Test
Dipswitch
Pole
1
2
3
4
5
6
7
8
IMDSO04 address dipswitch S1
0
0
0
0
1
1
1
1
INIPT02 dipswitch SW2
0
0
0
0
1
1
1
1
NOTE: 0 = CLOSED or ON, 1 = OPEN or OFF.
