Safe State Values (Configuration Word 10); Communicate Real Time/Nonreal Time Information; Reserved; Time Base - Allen-Bradley 1734-IJ User Manual

3-8 Input and Output Data
Communicate Real
Time/Nonreal Time
Information
Publication 1734-UM006B-EN-P - August 2005

Safe State Values (Configuration Word 10)

When either the host transitions to PROGRAM mode or a
communication fault (broken network cable) occurs, the module
copies the safe state word (counter control value) into its real-time
working buffer. The definitions are identical to those described under
Real-time Output Data.
The Encoder/Counter Module uses several words to communicate real
time input and output data as well as non-real time module
information (such as description and revision) and configuration.
Assembly 101 is produced for a polled connection. Assembly 102 is
produced for a Change Of State (COS) connection. Assemblies 103,
104, and 106 are by Explicit message only. Assembly 105 is consumed
in a polled connection.
Data may be read (get) or written (set) using an Explicit Message. For
example, to read the Present Channel Data, assembly 101
be requested. The following table shows the words which can be
exchanged.
Instances Services Field
#101 (0x65) Get Present Channel Data
Status
#102 (0x66) Get Stored Channel Data
Status
#103 (0x67) Get Present Channel Data
Stored Channel Data
Status
#104 (0x68) Get Programming Error Code
#105 (0x69) Set/Get Counter Control
#106 (0x6a) Set/Get Counter Configuration
Filter Selection
Decimal Position

Reserved

Time Base

Gate Interval

Scalar

Rollover Value

Preset Value

Counter Control SSV
(65 ) can
10 16
Bytes
4
2
4
2
4
4
2
2
1
1
1
1
1
2
1
1
4
4
1