Command Sync
Data Sync
Bit
Bit
Bit
Period
Period
Period
Logical One Data
Logical Zero Data
Figure 14: Character Formats
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19
Command Word (From Controller to Terminal)
5
1
5
5
1
Terminal
Address
Subaddress
Mode
Data Word
Count
Sync
R/T
P
Data Word (Sent Either Direction)
16
1
Sync
Data Word
P
Status Word (From Terminal to Controller)
5
1
9
1
1
Terminal
Address
Sync
ME
Code for Failure Modes
TF
P
Figure 15: Word Formats
Aeroflex Circuit Technology
SCD15530 REV B 7/28/99 Plainview NY (516) 694-6700
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