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Reference Manual Rev 3.23
Software Versions 3.xx
Page 47
9. Serial Outputs
The instrument can support the optional temporary opto-LINK connection. In addition,
there is a single bi-directional RS-232 output. This provides a number of serial output
types allowing communications with external devices such as printers, computers, PLCs or
remote displays. Refer to opto-LINK Activation page 15. For wiring connections and
pinouts, refer to Auxiliary Connection page 10.
The available serial types include:
•
Network Communications
•
Automatic Output
•
Single Output
•
Printing
•
Automatic Printing
9.1. Network Communications
9.1.1. COMM Protocol
The COMM network communications feature is normally used to control indicators
remotely from a central computer, or PLC. A COMM command and response might
be:
20110150:<CR><LF>
9F110150:07/01/2030 17:29<CR><LF>
9.1.2. Ring Network Enhancement
Instruments can be installed in a Ring Network. This also requires the central
computer to send additional framing characters, ‘Echo-On’ (=<DC2> =ASCII 12
H
)
and ‘Echo-Off’ (=<DC4> =ASCII 14
H
) around each command. A Ring Network
enhanced COMM command and response might be:
<DC2>20110150:<CR><LF>
<DC4>
<DC2>20110150:<CR><LF>
9F110150:07/01/2030 17:29<CR><LF>
9E110150:07/01/2030 17:30<CR><LF>
<DC4>
For more information on the COMM Protocol and the Ring Network Enhancement,
please refer to the Communications Manual.
9.2. Automatic Weight Output
The automatic output is normally used to drive remote displays, a dedicated
computer, or PLC communications.
9.3. Single Output
The single output produces a single output with the formats selected. It is used to
drive remote displays, a dedicated computer, or PLC communications.