Modicon TM7 IP 67 modular I/O system

Modicon TM7 IP 67 blocks are available in various compositions and for different functions.

Digital blocks

• Three input blocks
• Three configurable I/O blocks
• One output block

Analog blocks

• Two expansion blocks with 4 inputs for connecting 4 sensors
• Two expansion blocks with 4 outputs for connecting 4 actuators
• Two mixed expansion blocks with 2 inputs and 2 outputs
• Two expansion blocks with 4 resistive temperature probe or thermocouple temperature measurement channels

Power distribution block

A power distribution block is available as an option to supply I/O expansion blocks on the TM7 expansion bus.  This power distribution block is necessary to avoid voltage drops in the following situations:

• With a TM7NCOM08B CANopen interface block followed by 4 (2) TM7 I/O expansion blocks
• With a TM5SBET7 transmitter module (1) followed by 6 (2) TM7 I/O expansion blocks (mounted vertically)
• With a TM7NCOM16A/16B CANopen interface block followed by 18 (2) TM7 I/O expansion blocks

Connection accessories

A range of cables and connectors is available for connecting the:

• CAN bus
• TM7 expansion bus
• I/O
• 24 V c power supplies on TM7 expansion blocks

Diagnostic functions
The diagnostic monitoring of faults is indicated by LEDs on CANopen interface I/O blocks, expansion blocks and power distribution blocks and informs the control system (M258 logic controller, or M340 or Premium automation platforms) via the TM7 bus.
Each Modicon TM7 block has LEDs

• To display the status of the TM7 bus, the channel and the power supply
• For quick, precise location of a fault There are several levels of diagnostics:
• Diagnostics per channel:
  • State of inputs
  • State of outputs
• Diagnostics per expansion block:
  • Sensor/actuator power supply present
  • Undervoltage fault on the I/O power supply
  • Analog input diagnostics
  • Short-circuit or overload on one or more digital outputs
• Communication bus diagnostics:
  • On CAN bus (CANopen interface I/O block)
  • On TM7 expansion bus (CANopen interface I/O block and I/O expansion blocks)
• Diagnostics of the power supply via the TM7 bus (expansion block only)