Commands – Watlow Series 734 Data Communications User Manual
Page 18
18
WATLOW Series 733/734
How to Use Data Communications
Table 5 -
Command Summary
with Read (?) and
Write (=) Simple
Syntax and Data
Range/Responses.
Commands
Table continued on the next page.
Name
Description
Read (?) and/or Write (=) Syntax
Range
(data.1)
Add ETX & STX with ANSI X3.28 Protocol
(data.2)
ER1
Error 1 Code
?
0 = No error
(Multiple errors
=
1 = ROM error
possible.)
2 = RAM error
3 = Ambient sensor error
4 = Configuration error
5 = EEprom error
6 = A/D underflow error, Zone 1
7 = A/D overflow error, Zone 1
8 = A/D underflow error, Zone 2
9 = A/D overflow error, Zone 2
10 = Stack overflow error
11 = Open sensor, Zone 1
12 = Shorted sensor, Zone 1
13 = Open sensor, Zone 2
14 = Shorted sensor, Zone 2
15 = Loop error, Zone 1
16 = Loop error, Zone 2
ER2
Error 2 Code
?
0 = No error
1 = Transmit buffer overflow
2 = Receive buffer overflow
3 = Framing error
4 = Overrun error
5 = Parity error
6 = Talking out of turn
7 = Invalid reply error
8 = Noise error
20 = Command not found
21 = Prompt not found
22 = Incomplete command line
23 = Invalid character
24 = Number of chars. overflow
25 = Input out of limit
26 = Read only command
27 = Write allowed only
GB
Guard Band
?
1 to 4000°F
=
1 to 2222°C
1 to 4000 Units
HYS1
Zone 1 Hysteresis
?
1 to 99°F
=
1 to 55°C
HYS2
Zone 2 Hysteresis
?
1 to 99°F
=
1 to 55°C
1 to 99 Units
INP1
Zone 1 Input Type
?
0 = J t/c; 32 to 1382°F/0 to 750°C
=
1 = K t/c; 32 to 2282°F/0 to 1250°C
2 = E t/c; 32 to 1220°F/0 to 660°C
3 = RTD; 32 to 1112°F/0 to 600°C
INP2
Zone 2 Input Type
?
0 = J t/c; 32 to 1382°F/0 to 750°C
=
1 = K t/c; 32 to 2282°F/0 to 1250°C
2 = E t/c; 32 to 1220°F/0 to 660°C
3 = RTD; 32 to 1112°F/0 to 600°C
4 = 0-5V; -500 to 3500 units
5 = 4-20mA; -500 to 3500 units
6 = 0-10V; -500 to 3500 units
7 = 0-20mA; -500 to 3500 units
LAT
Alarm Latching
?
0 = Non-latched alarms
=
1 = Latched alarms
LOC
Keyboard Lock
?
0 = Enable prompt change
=
1 = Disable prompt change
LOOP Loop Failure
?
0 = Loop fail check OFF
=
1 = Loop fail check ON
LI
Logic Input Test
?
Response depends on 733 hard-
ware and LI switch positions.
Change a switch and retry; a
switch change = logic data chg.