Commreq #21: Read Block I/O Command - GE PACSystems RX3i Genius User Manual

6.4.12 COMMREQ #21: Read Block I/O Command

This command is used to read input and output data from the following Genius blocks:
• 4-Input/2-Output Analog Blocks
• Current-source Analog Blocks
• Thermocouple Input Blocks
The data available to this command includes the I/O data that is part of the block's periodic
I/O update as well as other related data, such as the raw counts.
Command Block for the Read Block I/O Command
Address
Address +1
Address +2
Address +3
Address +4
Address +5
Address +6
Address +7
Address +8
Address +9
Address +10
Address +11
Address +12
Address +13 I/O Offset
I/O Data Format Returned by 4-In/2-Out Analog and Strain Gauge/mV
Blocks
Byte #
0
1
2
3
4-5
6-7
8-9
10
11
12-13
14
15
16-17
18-19
20-21
22
23
24-25
GFK-2892B
Command Length
No Wait
Status Block memory type
Status Block offset
Idle timeout value
Max. communications time
Command number
PROFINET Device number
Genius Device Number
Length
Deposit Memory type
Memory offset, bytes 1, 2
bytes 3, 4
Description
Block Model Number
Block Software Revision Number
A/D value for Input Channel 1 (LSB)
A/D value for Input Channel 1 (MSB)
A/D value for Input Channel 2
A/D value for Input Channel 3
A/D value for Input Channel 4
D/A value for Output Channel 1 (LSB) *
D/A value for Output Channel 1 (MSB) *
D/A value for Output Channel 2 *
Engineering Units value for input channel 1 (LSB)
Engineering Units value for input channel 1 (MSB)
Engineering Units value for input channel 2
Engineering Units value for input channel 3
Engineering Units value for input channel 4
Engineering Units value for output channel 1 (LSB) *
Engineering Units value for output channel 1 (MSB) *
Engineering Units value for output channel 2 *
PACSystems RX3i Genius Communications Gateway User Manual
Chapter 6. COMMREQ/Data_Init_Comm Programming
8
0
70 (%I), 72 (%Q), 8 (%R), 10 (%AI), 12 (%AQ) or 196 (%W)
Beginning address for the COMMREQ Status Block.
0
0
21
1-255: The device number of the targeted GCG Genius Gateway.
0-31: the SBA of the targeted Genius Device from which data is to
be retrieved.
Length of data to be returned by the target Genius device.
Value in bits or words, depending on memory type selected below
Enter the code representing the CPU Memory Type where the GCG will
deposit the data obtained from the target Genius Device. Use the
same codes as in Address+2.
Starting address within the Deposit Memory type.
(Byte 4 is msb, Byte 1 is lsb)
Byte offset from the beginning of the device's I/O data (zero-based).
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