SIEMENS 6ES7403-1TA00-0AA0 SIMATIC S7-400, ER1 EXP. RACK, WITH 18 SLOTS,F. SIGNAL MODULES ONLY

SIEMENS 6ES7403-1TA00-0AA0SIMATIC S7-400, ER1 EXP. RACK, WITH 18 SLOTS,F. SIGNAL MODULES ONLY

Okay, let's take a look at the Siemens 6ES7403-1TA00-0AA0 SIMATIC S7-400, ER1 Expansion Rack:

This is a different model of expansion rack designed for the Siemens SIMATIC S7-400 programmable logic controller (PLC) system. The ER1 expansion rack is used to add additional I/O and other modules to an existing S7-400 configuration, similar to the ER2 racks we discussed earlier.

Some key details about the 6ES7403-1TA00-0AA0 ER1 expansion rack:

- Holds up to 4 modules in the S7-400 series
- Dimensions of 482.6 mm x 177 mm x 270 mm (W x H x D)
- Supports redundant 100-240 VAC/DC power supplies
- Includes a system bus to connect the modules within the rack
- Mounts on a standard 19" rack system
- Allows expansion of an existing S7-400 PLC system by adding more I/O, communication, or other modules

The main difference between the ER1 and ER2 expansion racks is the number of module slots - the ER1 has 4 slots compared to the 9 slots in the ER2 models.

The ER1 rack connects to the main S7-400 central rack via a bus connector, enabling the expansion rack's modules to be integrated into the overall SIMATIC S7-400 control system architecture.

So in summary, the 6ES7403-1TA00-0AA0 is an ER1 expansion rack that provides a 4-slot option for modularly expanding an existing Siemens S7-400 PLC system. Let me know if you need any other details on this particular expansion rack model.