Table of Contents
Advertisement
Channel LED Indicator
Operation
Module Error Definition Table
Thermocouple/mV module errors are expressed on a channel basis in
input read word 4. The structure of the status data is shown in the
following table.
Table 4.4 Word Bit Position
Word
15 14 13 12 11
4
Not Used
Table 4.5 Bit Descriptions
Word
Decimal Bit
Bits 00-03
Bits 04-07
Read Word 4
Bit 08-11
Bit 12-15
Individual channel LED indicator operation is shown in the following
table.
Table 4.6 Individual Channel LEDs Indicator
I/O Channel LED Status Indicator
Status:
Description
Flashing Green/Red
Power up
Off
Off line
Red
On line and no field power
Red
DeviceNet connection and no field power
Flashing Red
Field power and open wire
Green
Field power and valid input
Flashing Red
Input over range, open input
Flashing Red
Input under range
Flashing Red
Recoverable fault
AB Drives
Diagnostics and Troubleshooting
Bit Description
10
9
8
7
S11 S10 S9 S8
Description
Underrange for individual channels. Bit 00 corresponds to input
channel 0, bit 01 corresponds to input channel 1 and so on.
When set (1), the input signal if below the input channel's
minimum range
Not used: Set to 0
Overrange for individual channels. Bit 08 corresponds to input
channel 0, bit 09 corresponds to input channel 1 and so on.
When set (1), the input signal if above the input channel's
maximum range, or open thermocouple is detected
Not used: Set to 0
6
5
4
3
2
1
Not Used
S3 S2 S1 S0
Publication 1790-UM003A-EN-P
4-5
0
Advertisement
Table of Contents
