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RS232C Option Specifications
Mode:
Half Duplex, Transmit Only
Handshake:
DSR (data set ready), DTR (data terminal ready) and TXD (transmit data signal)
Rate: Factory supplied at 1200 baud unless otherwise ordered. Rate can be field set to 600, 1200, 2400,
4800, 9600 and 19200 baud via the DIP switch assembly on the top circuit board inside the meter (please
see Figure 3 next page). To reach the DIP assembly, remove the four screws that secure the front panel to
the case and slide the circuit boards out of the case.
Data Format: No parity bit, 1 stop bit, 8 data bits
Data Transmission: Data is transmitted in ASCII characters in the following sequence
Sign:
plus or minus (1’st word)
Magnitude:
MSD first (2’nd through 6’th word)
Decimal Point: Exponent (7’th word)
EOL:
Control Z (8’th word)
Decimal position is transmitted as power of 10 exponent
X.XXXX
4 (ASCII)
XX.XXX
3 (ASCII)
XXX.XX
2 (ASCII)
XXXX.X
1 (ASCII)
Data Update: Data is transmitted once per conversion cycle, if the Data Set Ready (DSR) line is True.
Once transmission is started, all 8 words are transmitted independently of DSR (i.e., the state of DSR is
ignored until all words are transmitted).
Data Terminal Ready (DTR): DTR is set True when the meter is active.
Summary of Contents for 1003
Page 1: ...M009 0009 Rev 8 MODEL 1003 TRANSDUCER INDICATOR INSTRUCTION MANUAL ...
Page 13: ... 13 Table 3 Table 4 Figure 3 RS232C Option Switch Settings and Pin Designations ...
Page 15: ... 15 S1 S2 S3 S4 SWITCH DEFINITIONS Front Panel View ...
Page 23: ... 23 Table 6 Troubleshooting Guide Table 7 Replacement Mating Connector P Ns ...