A wide range of modules allows individual expansion of LOGO! to *4 digital s,*6 digital outputs, 8 analog s and 2 analog outputs!

The use of serveral LOGO! 0BA7 units allows to expand the overall system to a max. of *8 digital s, *0 digital outputs, *0 anlaog s and *8 analog outputs.

Communication modules are also available for AS-Interface and KNX (KONEX the former EIB network for building automation). It is also possible to use the analog output module to solve simple closed-loop control tasks. Heating and cooling systems can be designed with the AM2 RTD module (forPT**0/PT***0 temperature sensors) using special functions for PI control, ramp response and analog multiplexer.

Digital expansion modules 

Four versions for expanding the digital s and outputs:

DM8 **0R / DM*6 **0R

• Supply voltage **5 / **0 V AC / DC
• Four/eight **0 / **0 V AC / DC digital s
• Four / eight digital output relays, 5 A per relay

DM8 *4 / DM*6 *4

• Supply voltage *4 V DC
• Four / eight *4 V DC digital s
• Four / eight digital output transistors, 0.3 A

DM8 *2 / *4R

• Supply voltage *2 / *4 V DC
• Four *2 / *4 V digital s
• Four digital output relays, 5 A per relay

DM8 *4R

• Supply voltage *4 V AC / DC
• Four *4 V AC / DC digital s, PNP or NPN
• Four digital output relays, 5 A per relay

DM*6 *4R

• Supply voltage *4 V DC
• Eight *4 V DC digital s
• Four digital output relays, 5 A per relay

Analog expansion modules

Three modules for expanding analog and temperature I/O:

AM2 AI

• Supply voltage *2 / *4 V DC
• Two channels
• 0 to *0 V or 0 to *0 mA type

AM2 RTD

• Supply voltage *2 / *4 V DC
• Two channels
• Type PT**0/PT***0 (automatic sensor detection)
• Measuring range *0 °C to ***0 °C

AM2 AQ

• Supply voltage *4 V DC
• 2 analog outputs
• 0 to *0 V or 0 to *0 mA type