Micromod Micro-DCI: 53SL5100A Single Loop Controller - Manual (Page 137)

Single Loop Process Controller Instruction Manual
Communications 129
B.1.4.2 Transaction B Example
Host or SUPERVISOR-PC sends two bytes of new data, to be loaded into the instrument at Datalink
address 03, beginning at hexadecimal memory address 1000H.
1. Host sends CHANGE message.
01111110 10100011 00000010 00000000 00010000 00001000 00001100 11001001
SOH Command NUM LO ADD HI ADD Data 1 Data 2 LRC
+ I.A.
2. Instrument sends RESPONSE message.
01111110 00100011 00000010 00000000 00010000 00001000 00001100 01001001
SOH Command NUM LO ADD HI ADD Data 1 Data 2 LRC
+ I.A.
3. Host sends ACKNOWLEDGE message.
01111110 10000011
SOH Command
+ I.A.
4. Instrument performs the change requested at end of the current program scan.