Kramer Electronics VP-128H Printer User Manual


 
Communication Protocols
17
10 Communication Protocols
The VP-128H is compatible with the Kramer 2000 Protocol Supported
Subset (see section 10.1), the Sierra Video Systems (SVS) RS-232
Compatible Protocol (see section 10.2), and the Generic Protocol Supported
Subset (see section 10.3).
The following commands (as defined in Table 12) are used to switch between
ASCII protocols and Protocol 2000:
Table 12: RS-232 Commands for Selecting Different Protocols
To Protocol
From Protocol
Protocol
2000
Generic Protocol
Sierra Protocol
Protocol 2000
0x38 0x82 0x81 0x81 0x38 0x81 0x81 0x81
Generic Protocol
A1<Enter> A2<Enter>
Sierra Protocol
*CHANGE HEX! *CHANGE NORT!
10.1 Kramer 2000 Protocol Supported Subset
This RS-232 communication protocol uses four bytes of information as
defined below. The default data rate is 9600 baud, with no parity, 8 data bits
and 1 stop bit.
MSB LSB
DESTI-
NATION
INSTRUCTION
0 D N5 N4 N3 N2 N1 N0
7 6 5 4 3 2 1 0
1st byte
INPUT
1 I6 I5 I4 I3 I2 I1 I0
7 6 5 4 3 2 1 0
2nd byte
OUTPUT
1 O6 O5 O4 O3 O2 O1 O0
7 6 5 4 3 2 1 0
3rd byte
MACHINE NUMBER
1 OVR X M4 M3 M2 M1 M0
7 6 5 4 3 2 1 0
4th byte