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Despatch P1400+ Temperature Controller User Manual

Page 55

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49

Parameter

Modbus

Parameter No.

ASCII Ident &

Message Types

Notes

Setpoint Ramp
Rate

24

R/W

^

Type 2

Type 3/4

RO

R/W

0 = 0ff, 1 to 9999 increments / hour.
Dec Point position as for input range.

Input Filter Time
Constant

25

R/W

m

Type 2, 3/4

R/W

0 to 100 seconds

Process Value
Offset

26

R/W

v

Type 2

Type 3/4

RO

R/W

Modified PV = Actual PV + PV Offset.
Limited by Scale Range Maximum
and Scale Range Minimum.

Re-transmit Output
Maximum

27

R/W

[

Type 2, 3/4

R/W

Maximum scale value for retransmit
output, 1999 to 9999. This parameter
applies to the first re-transmit output
fitted (see also Modbus parameters
2214, 2224 & 2234).

Re-transmit Output
Minimum

28

R/W

\

Type 2, 3/4

R/W

Minimum scale value for retransmit
output, 1999 to 9999. This parameter
applies to the first re-transmit output
fitted (see also Modbus parameters
2215, 2225 & 2235).

Setpoint 2

29

R/W

Value of Setpoint 2

Remote Setpoint

30

RO

Value of Remote Setpoint. Returns
0FFFFhex if RSP not fitted.

Remote Setpoint
Offset

31

R/W

~

Type 2, 3/4

R/W

Modified RSP = Actual RSP + RSP
Offset. Limited by Scale Range
Maximum and Scale Range Minimum.

Alarm 1 Hysteresis

32

R/W

0 to 100% of span

Alarm 2 Hysteresis

33

R/W

0 to 100% of span

Setpoint 1

34

R/W

Value of Setpoint 1

Setpoint Select

35

R/W

Shows which is the currently selected
active setpoint. If a digital input has
been configured for Setpoint Select, it
will take priority over this parameter
1 = SP1 or LSP
2 = SP2
100hex = RSP