Copyright HK Instruments 2021
www.hkinstruments.fi
Installation version 7.0 2021
The seller is obligated to provide a warranty of five years for the deliv-
ered goods regarding material and manufacturing. The warranty period
is considered to start on the delivery date of the product. If a defect
in raw materials or a production flaw is found, the seller is obligated,
when the product is sent to the seller without delay or before expira-
tion of the warranty, to amend the mistake at his/her discretion either
by repairing the defective product or by delivering free of charge to the
buyer a new flawless product and sending it to the buyer. Delivery costs
for the repair under warranty will be paid by the buyer and the return
costs by the seller. The warranty does not comprise damages caused by
accident, lightning, flood or other natural phenomenon, normal wear
and tear, improper or careless handling, abnormal use, overloading, im-
proper storage, incorrect care or reconstruction, or changes and instal-
lation work not done by the seller or his/her authorized representative.
The selection of materials for devices prone to corrosion is the buyer’s
responsibility, unless otherwise is legally agreed upon. Should the man-
ufacturer alter the structure of the device, the seller is not obligated to
make comparable changes to devices already purchased. Appealing for
warranty requires that the buyer has correctly fulfilled his/her duties
arisen from the delivery and stated in the contract. The seller will give
a new warranty for goods that have been replaced or repaired within
the warranty, however only to the expiration of the original product’s
warranty time. The warranty includes the repair of a defective part or
device, or if needed, a new part or device, but not installation or ex-
change costs. Under no circumstance is the seller liable for damages
compensation for indirect damage.
STEP 5: MODBUS REGISTERS
Register
Parameter description
Data Type
Value
Range
1x0001
Relay status
Bit 0
0...1
0=Off - 1=On
1x0002
Relay trend
Bit 0
0...1
0=Increasing, 1=Decreasing
Function code 02 - Read input status
Register
Parameter description
Data Type
Value
Range
4x0001
Parameter for P-controller
16 bit
0...3
1=rH, 2=TE, 3=MAX
4x0004
rH high limit
16 bit
100...1000
10.0...100.0 %
4x0005
rH low limit
16 bit
0...900
0.0...90.0 %
4x0006
TE high limit
16 bit
50...500
5.0...50.0 °C
4x0007
TE low limit
16 bit
0...450
0...45.0 °C
4x0008
Parameter for relay
16 bit
0...3
1=rH, 2=TE, (3=Off)
4x0011
rH relay on
16 bit
15...990
1.5...99.0 %
4x0012
rH relay off
16 bit
10...985
1.0...98.5 %
4x0013
TE relay on
16 bit
15...490
1.5...49.0 °C
4x0014
TE relay off
16 bit
10...485
1.0...48.5 °C
Function code 03 - Read input holding register
Function code 04 - Read input register
Register
Parameter description
Data Type
Value
Range
3x0001
Parameter for P-controller
16 bit
0...3
1=rH, 2=TE, 3=MAX
3x0003
rH reading
16 bit
0...1000
0,0...100.0 %
3x0004
Temp. reading
16 bit
0...500
0.0...50.0 °C
3x0007
rH high limit
16 bit
100...1000
10.0...100.0 %
3x0008
rH low limit
16 bit
0...900
0.0...90.0 %
3x0009
TE high limit
16 bit
50...500
5.0...50.0 °C
3x0010
TE low limit
16 bit
0...450
0...45.0 °C
3x0011
Parameter for relay
16 bit
0...3
1=rH, 2=TE, (3=Off)
3x0014
rH relay on
16 bit
15...990
1.5...99.0 %
3x0015
rH relay off
16 bit
10...985
1.0...98,5 %
3x0016
TE relay on
16 bit
15...490
1.5...49.0 °C
3x0017
TE relay off
16 bit
10...485
1.0...48.5 °C
Function code 05 - Write single coil
Register
Parameter description
Data Type
Value
Range
0x0001
Relay trend
Bit 0
0...1
0=Increasing, 1=Decreasing
Functions for Modbus communication:
Function Code
Description
01
Read coil status
02
Read input status
03
Read holding registers
04
Read input registers
05
Force single coil
06
Preset single register
07
Read exception status
15
Force multiple coils
16
Preset multiple registers
17
Report slave ID
MODBUS REGISTERS
CONTINUED
Function code 16 - Write multiple registers
Register
Parameter description
Data Type
Value
Range
4x0001
Parameter for P-controller
16 bit
0...3
1=rH, 2=TE, 3=MAX
4x0004
rH high limit
16 bit
100...1000
10.0...100.0 %
4x0005
rH low limit
16 bit
0...900
0.0...90.0 %
4x0006
TE high limit
16 bit
50...500
5.0...50.0 °C
4x0007
TE low limit
16 bit
0...450
0...45.0 °C
4x0008
Parameter for relay
16 bit
0...3
1=rH, 2=TE, (3=Off)
4x0011
rH relay on
16 bit
15...990
1.5...99.0 %
4x0012
rH relay off
16 bit
10...985
1.0...98.5 %
4x0013
TE relay on
16 bit
15...490
1.5...49.0 °C
4x0014
TE relay off
16 bit
10...485
1.0...48.5 °C
RECYCLING/DISPOSAL
The parts left over from installation should be
recycled according to your local instructions.
Decommissioned devices should be taken to a
recycling site that specializes in electronic waste.
WARRANTY POLICY
Function code 06 - Write single register
Register
Parameter description
Data Type
Value
Range
4x0001
Parameter for P-controller
16 bit
0...3
1=rH, 2=TE, 3=MAX
4x0004
rH high limit
16 bit
100...1000
10.0...100.0 %
4x0005
rH low limit
16 bit
0...900
0.0...90.0 %
4x0006
TE high limit
16 bit
50...500
5.0...50.0 °C
4x0007
TE low limit
16 bit
0...450
0...45.0 °C
4x0008
Parameter for relay
16 bit
0...3
1=rH, 2=TE, (3=Off)
4x0011
rH relay on
16 bit
15...990
1.5...99.0 %
4x0012
rH relay off
16 bit
10...985
1.0...98.5 %
4x0013
TE relay on
16 bit
15...490
1.5...49.0 °C
4x0014
TE relay off
16 bit
10...485
1.0...48.5 °C
Jumper settings
CONTINUED
Jumper installed to the left side pins:
0–10 V output selected
N/A
N/A
Analog
0...10 V 4...20 mA
Jumper installed to the right side pins:
4–20 mA output selected
N/A
N/A
Analog
0...10 V 4...20 mA
Figure 4
2) Locking the display:
Install the jumper to lock the display to prevent access to the
configuration menu after installation is completed (see the
schematics for the location of the pins).