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6.4.13 COMMREQ #22: Read Map Command
To read the I/O mapping configuration from a 90-70 Remote Scanner, use the Read Map
Command. When the data is received, it will automatically be placed in the CPU memory
location specified in the Command Block.
Command Block for the Read Map Command
Address
Address +1
Address +2
Address +3
Address +4
Address +5
Address +6
Address +7
Address +8
Address +9
Address +10 Deposit Memory type
Address +11
Address +12
Read Map Returned Data
Byte #
0
1-2
3
4-5
6
7-8
9
10-11
12
13
14-15
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
Deposit Memory Length
(either bits or words)
Memory offset,
bytes 1, 2
bytes 3, 4
Description
Remote Rack ID
%I Starting Reference
Length of %I data (bytes)
%AI Starting Reference
Length of %AI data (bytes)
%Q Starting Reference
Length of %Q data (bytes)
%AQ Starting Reference
Length of %AQ data (bytes)
8-bit additive checksum
16-bit LRC checksum
PACSystems RX3i Genius Communications Gateway User Manual
Chapter 6. COMMREQ/Data_Init_Comm Programming
7
0
70 (%I), 72 (%Q), 8 (%R), 10 (%AI), 12 (%AQ) or 196 (%W)
Beginning address for the COMMREQ Status Block.
0
0
22
1-255: The device number of the targeted GCG Genius Gateway.
0-31: the SBA of the targeted Genius Device.
This entry tells the CPU how much memory is being allocated to
store the data returned by the Genius device. Value specified in bits
or words, depending on memory type selected below.
(8 words or 128 bits)
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)
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