Instruction Manual

14 MicroLogix 1200 Thermocouple/mV Input Module
Publication 1762-IN013B-EN-P - June 2013
The bits are defined as follows:
• Sx = General status bits for channels 0…3 (S0 …S3) and the CJC sensor (S4). This bit is
set (1) when an error (over-range, under-range, open-circuit, or input data not valid)
exists for that channel. An input data not valid condition is determined by the user
program. Refer to the MicroLogix 1200 I/O Thermocouple/mV Input Module User
Manual, publication number
1762-UM002 for additional details.
• OCx = Open-circuit indication for channels 0…3 (OC0…OC3) and the CJC sensor
(OC4).
• Ox = Over-range flag bits for channels 0…3 (O0… O3) and the CJC sensor (O4).
These bits can be used in the control program for error detection.
• Ux = Under-range flag bits for channels 0…3 (U0…U3) and the CJC sensor (U4).
These bits can be used in the control program for error detection.
Configuration Data File
The configuration data file consists of 5 words. Words 0…3 of the configuration file allow you
to change the parameters of each channel independently. For example, word 0 corresponds to
channel 0. The functional arrangement of the bits for a single channel are shown in the table on
page
15. Word 4 is the Module Configuration Word and is explained on page 16.