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Dual channel controller prompt table, Table 7.4, Dba to er – Watlow Series 988 Family User Manual

Page 62

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Name

Description

Read (?) and/or Write (=) Syntax

Range

data.1

data.2

Modbus

Address

Dual Channel Controller Prompt Table

996, 997,

998

, 999

7.4

Data Communications with the Watlow Series 988 Family

Command Summary Series 996-999, Chapter 7

DBA

Deadband

? DBA

-999°F to 999°F

505

PID Channel A

= DBA data.2

-555°C to 555°C
-999 units to 999 units
Default: 0°F, 0°C, or 0 units

DBB

Deadband

? DBB

-999°F to 999°F

525

PID Channel B

= DBB data.2

-555°C to 555°C
-999 units to 999 units
Default: 0°F, 0°C, or 0 units

DE1A

Derivative

? DE1A

0.00 to 9.99 minutes

503

Output 1 PID

= DE1A data.2

Default: 0.00

Channel A

DE1B

Derivative

? DE1B

0.00 to 9.99 minutes

523

Output 1 PID

= DE1B data.2

Default: 0.00

Channel B

DE2A

Derivative

? DE2A

0.00 to 9.99 minutes

513

Output 2 PID

= DE2A data.2

Default: 0.00

Channel A

DE2B

Derivative

? DE2B

0.00 to 9.99 minutes

533

Output 2 PID

= DE2B data.2

Default: 0.00

Channel B

DEC1

Decimal Point

? DEC1

0 = Decimal point 0

606

Process Input 1

= DEC1 data.2

1 = Decimal point 0.0
2 = Decimal point 0.00
3 = Decimal point 0.000
Default: 0

DEC2

Decimal Point

? DEC2

0 = Decimal point 0

616

Process Input 2

= DEC2 data.2

1 = Decimal point 0.0
2 = Decimal point 0.00
3 = Decimal point 0.000
Default: 0

DFL

Default Unit Type

? DFL

0 = US units

900

= DFL data.2

1 = Standard International units
Default: 0

DIAG

Lockout

? DIAG

0 = No lockout

1313

Diagnostics Menu

= DIAG data.2

1 = Read only
2 = No read or write
Default: 0

EI1

Event Input 1

? EI1

0 = No

1060

Function

= EI1 data.2

1 = LOC
2 = Alarm reset
3 = Toggle Auto/manual
4 = Turn control outputs off
Default: No

EI1S

Event Input 1 Status ? EI1S

0 = off (open)

201

1 = on (closed)

ER

Error, Analog Input

? ER

0 = No error

209

(Multiple errors

1 = Input 1 A-D overflow

possible.)

2 = Input 1 overrange
3 = Input 1 underrange
4 = Input 1 A-D underflow
5 = Input 2 A-D overflow
6 = Input 2 overrange
7 = Input 2 underrange
8 = Input 2 A-D underflow
9 = Ambient error

Table 7.4 -

DBA to ER

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CAUTION:
Avoid writing <=>
continuously,
such as ramping
set points or
repetitive loops, to
the Series 996-999
EEPROM memory.
Continuous writes
may result in
premature control
failure, system
downtime and
damage to
processes and
equipment.

NOTE:
The number of
decimal places
returned by many
of these com-
mands is deter-
mined by the
DEC1, DEC2, IN1
or IN2 setting.
(This does not
apply to Modbus
Protocol.)`