
6. PROTOCOL B B-63322EN-1/01
-48-
6.2
CONTROL CODE
The control code is as shown below regardless of the ISO, EIA, and
Binary data:
Code (hexadecimal)
Control
code
Function
Bit 2 of parameter
No. 5000 = 0
Bit 2 of parameter
No. 5000 = 1
DC1 Starts host transmission. 11H 11H
DC3 Stops host transmission. 93H 13H
DC2 Starts punch-out. 12H 12H
DC4 Stops punch-out. 14H 14H
NAK Posts an NC alarm. 95H 15H
SYN Posts NC reset. 96H 16H
6.3
BUFFER CONTROL
The buffer control method of remote buffer is described in the
following:
Protocol Interface MAX baud rate
DC3 transmission
conditions
DC1 transmission
conditions
Allowable
overrun value
Protocol B RS-232-C 19200 Remaining characters <=
512 characters
Vacant space >= 4096
characters
Less than 512
characters
Expansion
protocol B
RS-422 86400 Remaining characters <=
2560 characters
Vacant space >= 4096
characters
Less than 2560
characters