DH+/RIO OPTICAL COMMUNICATION MODULES USERS MANUAL
Copyright © 2003 by Phoenix Digital Corporation, All Rights Reserved.
RSLogix 5 OCM I/O module configuration is similar to other types of 1771 I/O modules. The first
step is to select “I/O Configuration” for the 1771 Chassis. Next select the chassis and I/O slot where
the OCM is located, and open the “Edit Module - Module Type” configuration table. From this
table select either “1771-SIM - 8pt Discete I/O Simulator” if OCM Processor Write is Enabled (SW
4 Position 9 ON), or “1771-IG - 5v DC TTL 8pt Input” if OCM Processor Write is Disabled (SW
4 Position 9 OFF). (Note: User should consult Rockwell Allen-Bradley Hardware Installation Manual
for more information on addressing modes and program configuration for I/O Groups, Chassis, and
Racks.)
Read/Write Diagnostic Status and Control functions for the 1771 Plug-In OCM Module are given in
the Diagnostic I/O Bit Map illustrated in Figure 9. Definitions of Diagnostic Select Switch
Settings are provided in Table 9. Specifications and further explanation of OCM diagnostic func-
tions are provided in Sections 1.3.3.5-1.3.3.10.
1.3.3.3 1746 PLUG-IN OLCs (Modules with “-D” Diagnostic Option Only)
Activation, control, and monitoring of 1746 Plug-In OLC diagnostics is provided under program
control thru read/write status and control bytes in the PLC I/O Image Table, and is also provided
under manual control via Diagnostic Select Switch Settings given in Table11. The 1746 Plug-In OLC
(with “-D” Option) occupies a single I/O module slot, and simulates either an 8 bit bi-directional I/O
module (when OLC Processor Write is Enabled) or an 8 bit input module (when OLC Processor
Write is Disabled). The 1746 I/O module designation, density, and type are program configurable,
and must be configured to match the I/O modules in the system... prior to programming. If the 1746
Plug-In OLC module is configured to simulate an 8 bit bi-directional I/O module (ie. SW 2 VALUE
3 is selected), then the module designation is “OTHER”, I/O Mix Code = “19”, and I/O Type Code
= “35”. (Example: If the 1746 Plug-In OLC Module is in I/O slot 1 then the correct configuration for
this slot would be “Slot 1 = OTHER 1935”.) If the 1746 Plug-In OLC module is configured as an 8
bit input module (ie. SW 2 VALUE 7 is selected) then the module designation is “OTHER”, I/O Mix
Code = “19”, and the I/O Type Code = “00”.
RSLogix 500 OLC I/O module configuration is similar to other types of 1746 I/O modules. The first
step is to select “I/O Configuration” for 1746 Chassis. Next select the chassis and I/O slot where the
OLC is located. This will also open an “I/O Configuration” table which will show “Current Cards
Available”. From this table select “Other - Requires I/O Card Type ID”, which will prompt you to
“Enter the I/O Card’s ID (decimal);”. If OLC Processor Write is Enabled (see Diagnostic Switch
Designations in Table 11) enter “1935”. If OLC Processor Write is Disabled enter “1900”. (Note:
User should consult Rockwell Allen-Bradley Hardware Installation Manual for more information on
addressing modes and program configuration for I/O Groups, Chassis, and Racks.)
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