OP7100
36 Hardware
Serial Communication
Two serial channels support asynchronous communication at baud rates
from 300 bps to 57,600 bps. Serial communication provides a simple and
robust means for networking controllers and other devices.
Figure 3-14 illustrates the configuration of the OP7100 serial channels.
Figure 3-14. Serial Channels
The factory default configuration for the OP7100 is for one 5-wire RS-232
port (with RTS and CTS) and one half-duplex RS-485 port. An RS-485
channel can provide half-duplex asynchronous communication over
twisted-pair wires for distances up to 3 km. Two other configurations,
shown in Figure 3-14, are one 3-wire RS-232/one RS-485, and two 3-wire
RS-232. The configurations are set with jumpers on header JP3.
Figure 3-15. Serial Communication Jumper Configurations
T1OUT
T2OUT
R1IN
R2IN
T1IN
T2IN
R1OUT
R2OUT
TX1/RTS
TXA0
232A
485
RX1/CTS
RXA0
D
R
DE
RE
A
B
U24
VCC
U26
to J11
to J10 (DE9)
and J8
TXA1
RXA1
EN485
TXA0
RTS0
RXA0
CTS0
FD
10
12
JP3
1
2
3
4
5
6
7
8
9
11
5-wire RS-232,
RS-485
10
12
JP3
1
2
3
4
5
6
7
8
9
11
two
3-wire RS-232
10
12
JP3
1
2
3
4
5
6
7
8
9
11
3-wire RS-232,
RS-485
Summary of Contents for OP7100
Page 1: ...OP7100 Serial Graphic Display User s Manual 019 0065 070831 O ...
Page 10: ...OP7100 x About This Manual ...
Page 16: ...OP7100 16 Overview ...
Page 74: ...OP7100 74 Software ...
Page 82: ...OP7100 82 Graphics Programming ...
Page 88: ...OP7100 88 Installation ...
Page 98: ...OP7100 98 Specifications ...
Page 108: ...OP7100 108 Memory I O Map and Interrupt Vectors ...
Page 112: ...112 Serial Interface Board 2 OP7100 ...
Page 113: ...OP7100 Backup Battery 113 APPENDIX E BACKUP BATTERY ...
Page 116: ...OP7100 116 Backup Battery ...
Page 124: ...OP7100 124 Index ...
Page 126: ...XX0000 Schematics ...