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6.4.10 COMMREQ #19: Read Identification
To read the identification data from a Genius device and place it in PLC CPU memory, use the
Read Identification command. This causes the Gateway to issue a Read Identification
datagram. When the data is received from the target Genius device, via a Read Identification
Reply Datagram, it will automatically be placed in the CPU memory location specified in the
Command Block.
Command Block for the Read Identification 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 Identification Reply Data
The datagram returned by the target Genius Device has the following data content:
Word #
0
1
2
3
4
5
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
MSB
Output data length (bytes)
Number of diagnostic data bytes
Device Status Table Address (lsb)
Device Model Number OR
GENA application ID if a GENA
Assigned controller bus address
OR S6 GBC DIP switch, if S6 GBC
OR GENA application rev #, if GENA
Baud Rate Code
Bits
Baud Rate
0 0 0 0 x x x x 153.6 K baud, extended
0 0 0 1 x x x x 153.6 K baud, standard
0 0 1 0 x x x x 76.8 K baud
0 0 1 1 x x x x 38.4 K baud
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
19
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 identification data returned by the Genius device.
Enter 6 for word memory types or 96 for bit memory types (depends
on the memory type selected as the Deposit Memory type 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)
LSB
Input data length (bytes)
Number of configuration data bytes
Device Status Bits
Bit
Description
0
Device Forced if set to 1
1,2
01 = inputs only
10 = outputs only
11 = combination
3
HHM Present if set to 1
4
BSM Present if set to 1
5
BSM Controller if set to 1
6
BSM Actual State
7
BSM Forced if set to 1
Device Status Table Address (msb)
Device Software Revision Number
Device Model Number
Public 65
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