Interfacing Examples; Meter Serial Port To A D-9 Connector - Omega DPF700 User Manual

8
RS-232 O
8.4 ASCII INPUT (Continued)
Single 'PUT' Command @U?SPaadd <CR>
Puts the dd data in the aa memory address. aa and dd are each two ASCII characters, from 0 - 9
or A - F. aa consists of two hexadecimal digits of address and dd consists of two hexadecimal
digits of data. Table 8-3 shows available address locations for this command.
!
CAUTION: Use this command only with addresses (aa values) shown in
Table 8-3.
Micro Controller Revision Command @U?SC <CR>
This command returns one ASCII character representing the revision number or letter of the
micro controller program.

8.5 INTERFACING EXAMPLES

The meter can interface to any device with RS-232E communications. The output levels are ±8 V
and the inputs may accept up to ±25 V. The pin connections are labeled for the meter to emulate
DCE (Data Communications Equipment). Examples are given for connections to an IBM PC with
D-25 and D-9 connectors. A 7' cable with two RJ-12 telephone jacks at two ends are provided
with RS-232 option. The connector adapter for D-9 and D-25 are optional.
9
6
Figure 8-12. Meter Serial Port to a D-9 Connector
44
PTION
5
RTN
RX
TX
RTS
1
6
N/C
5
4
3
2
1
N/C
RJ-12
CONNECTOR