Black Box 945 User Manual

WATLOW Series 945

How to Use Data Communications

Commands

Actual process value

Between R1L and R1H

0

J T/C

1

K T/C

2

T T/C

3

N T/C

4

PT2 T/C

5

C T/C

6

Not Used

7

R T/C

8

S T/C

9

B T/C

10

RTD whole

11

RTD tenths

12

0-5V

13

4-20mA

1

Auto mode

Multiple modes are possible.

2

Manual mode

4

Configuration mode

8

Calibration mode

16

Alarm silence active

0

No error

Multiple errors are possible.

1

Open sensor

2

Reversed sensor

4

Ambient sensor

8

Configuration

16

EE Checksum

32

A/D underflow

64

A/D overflow

128

Not used

0

No error

Cleared when ER2 is read.

1

Transmit buffer overflow

Only 1 ER2 response is valid.

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

16

Process input active

17

Local/remote is local

18

Local/remote is remote

19

Remote not enabled

20

Command not found

21

Parameter 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

0

T/C Only

1

T/C, RTD whole, process

2

T/C, RTD tenths, process

3

R, S, B T/C

Displays 945 X
X = software revision

Remote SP

Remote set point setting

The "?" Command reads a specific value of the Series 945 parameter (Data.1).
Tables 5 and 6 provide the complete list of parameters you may use, plus re-
sponses.