Upgrading Existing Series 500 Installations
D-12
TI545/TI555 System Manual
Installing a PPX:500–5114A RBC (continued)
The RBC is equipped with a RS-232 port to program the TI545/TI555 CPU
or, to troubleshoot from a remote I/O base. A baud rate thumbwheel (see
Figure D-6) is used to set the baud rate for this port.
Baud Rate Thumbwheel
Base Thumbwheel
LED Display
Remote
Base
Controller
Thumbwheel
Baud
Number
Rate
0
9600
. . . . . . . .
1
2400
. . . . . . . .
2
1200
. . . . . . . .
3
300
. . . . . . . . .
4
9600
. . . . . . . .
5
2400
. . . . . . . .
6
1200
. . . . . . . .
7
300
. . . . . . . . .
8
9600
. . . . . . . .
9
2400
. . . . . . . .
10
1200
. . . . . . . .
11
300
. . . . . . . . .
12
9600
. . . . . . . .
13
2400
. . . . . . . .
14
1200
. . . . . . . .
15
300
. . . . . . . . .
RS-485 I/O port 9-pin female
RS-232 port 25-pin female
Figure D-6
Series 500 Remote Base Controller and Baud Rate Settings
The base thumbwheel (Figure D-6) is used to assign a base number to the
RBC for system identification. If you are using more than one RBC, each
RBC must be uniquely numbered. Refer to Table D-1 for assigning base
numbers. Base number 0 is reserved for the TI545/TI555 and must not be
assigned to the RBC.
Setting Baud Rates
Assigning Base
Numbers