Delta AH500 Manual page 320

AH5 00 M od ul e M anua l
Type 4: Sending an abbreviated record, and receiving a full record:
Sending an abbreviated record: The packet which will be sent is the same as TX packet 1 in type
1 or TX packet 1 in type 2. The function field is 16#A9.
Receiving a full record:
『Start bit』 + 『Length』 + 『Length (repeat)』 + 『Start bit (repeat)』 + 『Instrument (IA)』 + 『Function
field (FF)』+『Parameter index (PI)』+『Data block (DB)』+『Checksum (CS)』+『End mark』
16#68+16#06+16#06+16#68+D0+(Null)+(Null)+(Summation of the characters starting from IA
to the last data type)+16#16
Start bit─Length─Length (repeat)─Start bit
(repeat)
8 - 5 8
Instrument (IA): Check whether the
instrument address received and the
instrument address sent previously are the
same.