Emerson PACSystems RX3i User Manual page 93

User manual
GFK-2892G
Command Block for the Read Data Command
Address Command Length
Address +1 No Wait
Address +2 Status Block memory type
Address +3 Status Block offset
Address +4 Idle timeout value
Address +5 Max. communications time
Address +6 Command number
Address +7 PROFINET Device number
Address +8 Genius Device Number
Address +9 Deposit Memory Length
Address +10 Deposit Memory type
Memory offset,
Address +11
Address +12
Command Code
Address +13
Counter Number
Address +14
Read Data Reply
Byte
Byte +1
Bytes 2 -5
COMMREQ/Data_Init_Comm Programming
9
0
70 (%I), 72 (%Q), 8 (%R), 10 (%AI), 12 (%AQ) or 196 (%W)
Beginning address for the COMMREQ Status Block.
0
0
24
1-255: The device number of the targeted GCG Genius Gateway.
1-29: the SBA of the targeted Genius HSC Device from which data is to
be retrieved.
This entry tells the CPU how much memory is being allocated to store
the data returned by the Genius device. The value (in bytes or bits)
depends on the memory type selected as the Deposit Memory type in
Address +10 below.
When an HSC block is configured as a Type A counter, enter 2 for word
memory types or 32 for bit memory types. However, when configured as
a Type B or Type C counter, enter 3 for word memory types or 48 for bit
memory types.
Note that the Read Data Reply Datagram always responds with six bytes
of data. The most significant bytes (Byte 4 & Byte 5) are null. Bytes 0 thru
Byte 3 contain the HSC Data requested.
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.
bytes 1, 2 Starting address within the Deposit Memory type.
bytes 3, 4 (Byte 4 is MSB, Byte 1 is LSB)
See Read/Write Data Command Code Table below.
1 – 4
Command Code
Counter Number
Value returned by Command
Code
See Read/Write Data Command Code Table below.
1 – 4
Chapter 6
Sep 2019
88