iSMA-B-MINI/MIX Modbus User Manual
www.ismacontrolli.com
DMP262en | 1st Issue rev. 8 | 05/2022
page 47 of 107
No. of Bit in the Register
Description
6,7
Hand status of outputs 4
Table 31. TO hand status bits
Value of Hand Status
Status Description
0
AUTO
2
HAND OUT = 0
3
HAND OUT = 1
Table 32. TO hand status value
7.6 Special Application Modes
7.6.1 Special Application Modes for 4I4O-H, 4I4O-H-IP, 4U4O-H, and
4U4O-H-IP
The 4I4O-H, 4I4O-H-IP, 4U4O-H, 4U4O-H-IP modules have simple built-in applications,
which can be used to control building devices. These applications control digital output
states according to the signals from the digital input. The relation between inputs and
outputs is shown in the table below, and it cannot be changed.
Digital Input
Digital Output
DI1
DO1
DI2
DO2
DI3
DO3
DI4
DO4
Table 33. Built-in application determining relations between inputs and outputs
The digital inputs in 4I4O-H, 4I4O-H-IP, 4U4O-H, 4U4O-H-IP modules can be set to work in
different modes. There are dedicated registers for operation mode (40176, 40180, 40184,
40188), time parameters (40177, 40181, 40185, 40189), setpoints for heating/cooling
modes (40178, 40182, 40186, 40190 4U4O-H, and 4U4O-H-IP only), and for differential
value in heating/cooling modes (40179, 40183, 40187, 40191 4U4O-H and 4U4O-H-IP
only).
Register
Description
40176
DI1 OPERATION MODE
40177
DI1 TIME VALUE
40178
DI1 SETPOINT
(4U4O-H and 4U4O-H-IP only)