Bard MC5000 Series User Manual

Manual 2100-746
Page 37 of 55
Modbus
To enable Modbus, the user will need to access the
webpages and enable the feature on the Modbus
Configuration page located under the Administration
tab on the navigational pane. This feature is disabled
by default to prevent unauthorized access to the
controller. Once enabled, changes can be made to
MC5300/MC5600 Modbus over TCP Protocol
Function Codes: 03, 16, 23 - Input and Holding Registers
Register
Address
Register Description
Data
Type
Register
Type
Data Range
0 Cooling Set point int16_t
Holding
Register
65 - 90 °F
1 Heating Set point int16_t
Holding
Register
32 - Cooling Set point – (4 + Cooling
Stage Off Differential)
2 Comfort Mode Cooling Set point int16_t
Holding
Register
65 - 90 °F
3 Comfort Mode Heating Set point int16_t
Holding
Register
32 - Comfort Mode Cooling Set point
– (4 + Comfort Cooling Stage Off
Differential)
4 Dehumidification Set point int16_t
Holding
Register
0 - 100 % RH
5 Humidification Set point int16_t
Holding
Register
0 - Dehumidification Set point – (10 +
Dehumidification Stage Off Differential)
6 Cooling Interstage Differential Set point
int16_t
(scaled by
10)
Holding
Register
(5 - 50) 0.5 - 5.0 °F
7 Cooling Stage Off Differential Set point
int16_t
(scaled by
10)
Holding
Register
(5 - 50) 0.5 - 5.0 °F
8 Heating Interstage Differential Set point
int16_t
(scaled by
10)
Holding
Register
(5 - 50) 0.5 - 5.0 °F
9 Heating Stage Off Differential Set point
int16_t
(scaled by
10)
Holding
Register
(5 - 50) 0.5 - 5.0 °F
10
Dehumidification Interstage Differential Set
point
int16_t
(scaled by
10)
Holding
Register
(0 - 50) 0.0 - 5.0 % RH
11
Dehumidification Stage Off Differential Set
point
int16_t
Holding
Register
1-15 % RH
12
Humidification Interstage Differential Set
point
int16_t
(scaled by
10)
Holding
Register
(5 - 50) 0.5 - 5.0 % RH
13
Humidification Stage Off Differential Set
point
int16_t
Holding
Register
1-15 % RH
some of the controller settings without a password. Any
access control to the Modbus will be dependent upon
the network used to access the controller. Adjustable
settings via Modbus are limited to set point type
configuration and is intended to be primarily used to
monitor the state and function of the controller during
operation.

Bard MC5000 Series Specifications

General

Brand	Bard
Model	MC5000 Series
Category	Controller
Language	English