QTS AN-X2-MOD-MAS, Руководство пользователя

Страница: 35 / 66

AN-X2-MOD-MAS Page
35
Offset Description
3 Current scan time
4 Maximum scan time, maximum in the last 6.5 seconds
To map the scan status, include a line with the keyword ScanSts in the input section of a
connection. This maps all five words; they cannot be mapped individually.
If you omit the offset, the line must start with a comma.
Drop Error Table
The drop error table consists of 2 16-bit words, one bit per drop. Bit 0 of the first word
corresponds to drop 1, bit 1 corresponds to drop 2, and so on.
If a configured drop is in error, the bit is 1. If a configured drop is responding correctly,
the bit is 0. The bit is 0 for an unconfigured drop.
To map the drop error table, include a line with the keyword DropErr.
If you omit the offset, the line must start with a comma.
Examples:
,DropErr
10, DropErr ; offset 10
TIP
Map the drop error table to the first two words of input data of each
connection. If the connection to the AN-X module is lost, the
ControlLogix sets the first 2 words of the connection to FFFF
hexadecimal. If your program is monitoring the drop error table, it will
see the error bit as set.
Module Health Bits
Each Modicon drop returns 5 words of module health data. Each word corresponds to a
rack – the first word corresponds to rack 1, the second corresponds to rack 2, and so on.
Bits in the word correspond to a slot.
The bit is 1 for a correctly functioning module and 0 otherwise.
To map the health bits for a given drop, include a line with the keyword ModnHlth,
where n is the drop number, from 1 to 32, in the input section of a connection.
If you omit the offset, the line must start with a comma.
Example: To map the health bits for drop 2
, Mod2Hlth
20, Mod2Hlth ; offset 20