43
Table 5-1
Listener Codes
ASCII
Character(s) Description
F0 Volts field (Always precedes voltage digits)
F5 Volt-Ampere field (always precedes VA digits)
F6 VA-seconds or Events count field (811A/811AE only)
STUVW Digits within each given field (S=MSD, T=2nd, etc.)
0-9 Value of allowed digits
C Calculate the Current value
B Start VA-seconds timing (811A only)
A Start KVA-seconds timing (811A only)
Q Start events counting (811A only)
D Deviation field
0 = Off, 1 = .1%, 2 = 1%
H Frequency field
1 = 50, 2 = 60, 4 = 400Hz
P Power factor field; followed by numeric:
0 = 0 PF, 1 = .1 PF to 9 = .9 PF; : = 1.0 p
L 1 = lead, 2 = lag
G Power polarity. 1=positive, 2=negative (optional)
E Operate
O Standby
R Initiate Remote mode
Table 5-2
Status Byte
Status Bit number Meaning when asserted Binary Weight
0 (lowest order) Excitation Applied (EAP) 1
1 Data Available 2
2 Standby (DEA) 4
3 Always asserted 8
4 Timing or Counting (811A only) 16
5 µP Busy 32
6 RQS 64
7 (highest order) Remote state 128
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