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Commands – Watlow Series 734 Data Communications User Manual

Page 18

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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

? ER1

0 = No error

(Multiple errors

= ER1 0

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

? ER2

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

? GB

1 to 4000°F

= GB data.2

1 to 2222°C
1 to 4000 Units

HYS1

Zone 1 Hysteresis

? HYS1

1 to 99°F

= HYS1 data.2

1 to 55°C

HYS2

Zone 2 Hysteresis

? HYS2

1 to 99°F

= HYS2 data.2

1 to 55°C
1 to 99 Units

INP1

Zone 1 Input Type

? INP1

0 = J t/c; 32 to 1382°F/0 to 750°C

= INP1 data.2

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

? INP2

0 = J t/c; 32 to 1382°F/0 to 750°C

= INP2 data.2

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

? LAT

0 = Non-latched alarms

= LAT data.2

1 = Latched alarms

LOC

Keyboard Lock

? LOC

0 = Enable prompt change

= LOC data.2

1 = Disable prompt change

LOOP Loop Failure

? LOOP

0 = Loop fail check OFF

= LOOP data.2

1 = Loop fail check ON

LI

Logic Input Test

? LI

Response depends on 733 hard-
ware and LI switch positions.
Change a switch and retry; a
switch change = logic data chg.

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