A maximum of seven units of EX modules can be attached to HTB. In addition to expansion of I/O for standard input and output, analog I/O can be used.
You can use the following EX module models and features.
EX Modules: Models and Features
Feature
Type
Description
Browse to
Standard Input
EXM-DDI8DT
DIO Module: 8-input sink/source
31.7.6.2 Standard Input (Model: EXM-DDI8DT)
EXM-DDI16DT
DIO Module: 16-input sink/source
31.7.6.3 Standard Input (Model: EXM-DDI16DT)
Standard Output
EXM-DDO8UT
DIO module: 8-output sink
31.7.6.4 Standard Output (Model: EXM-DDO8UT, EXM-DDO8TT and EXM-DRA8RT)
EXM-DDO8TT
DIO module: 8-output source
EXM-DRA8RT
DIO module: 8-output relay
EXM-DDO16UK
DIO module: 16-output sink
31.7.6.5 Standard Output (Model: EXM-DDO16UK, EXM-DDO16TK and EXM-DRA16RT)
EXM-DDO16TK
DIO module: 16-output source
EXM-DRA16RT
DIO module: 16-output relay
Standard I/O
EXM-DMM8DRT
DIO Module: 4-input sink/source
31.7.6.6 Standard Input and Output (Model: EXM-DMM8DRT)
Analog Input
EXM-AMI2HT
Analog Module:2-Input Voltage (0 - 10V) / Current (0 - 20mA)
31.7.6.10 Analog Input (Model: EXM-AMI2HT)
Analog Output
EXM-AMO1HT
Analog Module: 1-Output Voltage (0 - 10V) / Current (4 - 20mA)
31.7.6.11 Analog Output (Model: EXM-AMO1HT)
Analog IO
EXM-AMM3HT
Analog Module:2-Input Voltage (0 - 10V) / Current (4 - 20mA)
31.7.6.12 Analog I/O (Model: EXM-AMM3HT)
EXM-ALM3LT
Analog Module: 2-Input Thermocouple (K, I, T)/Pt100
31.7.6.13 Analog I/O (Model: EXM-ALM3LT)
While HTB is powered ON, such as when it's running, do not install or remove HTB or the EX module.