Schneider TSX47 series PLC selection

2.4 Intelligent modules and special functions

The TSX 47-20J/20/25 supports the installation of intelligent modules in the first few slots of the base frame, and the specific supported quantities are shown in the table. Common intelligent modules include:

Counting modules: TSX CCM 100, TSX DTM 100, TSX DMR 1652

Analog input/output: TSX AEM 41 (measurement system), TSX ASR 40 (analog output)

Axis control: TSX DTM 100, etc. (only supported by TSX 47-20/25)

Asynchronous serial link: TSX SCM 20/22 (except TSX SCM 13)

UNI-TELWAY bus module: TSX SCM 2116 (standard on TSX 47-25, optional for other models)

TELWAY Network: TSX MPT 104 (up to one can be installed in any slot)

Note that TSX 47-10 and 47-J do not support any intelligent modules and can only use discrete I/O.

Memory Structure and Software Environment

3.1 Internal RAM Data Storage

The 2K byte battery backup RAM built into the CPU is used to store application data and is divided into a bit storage area and a word storage area.

The bit memory contains the following objects:

Number of object types

System position 24

Function block output bit 128

Discrete I/O image 256 (TSX 47-10/20) or 160 (TSX 47-J/20J)

Internal bit 256

Grafcet step 96

1 fault position per I/O module

16 bit word memory:

Number of object types

Internal word 1024 (the first 128 words can be directly addressed, and the rest are transmitted through a table)

Grafcet Step Activity Time 96

Intelligent module word (TSX 47-20J/20/25 only) 2 × 16

System Word 4

TELWAY Network Public Character 16 × 4

Attention: The battery backup period is 5 weeks. If there is a long-term power outage, it is necessary to ensure that the battery is in good condition. It is recommended to keep the PLC powered when replacing the battery to avoid data loss.

3.2 Programming Software and Languages

The TSX 47 series uses PL7-2 graphical programming software and supports two IEC standard languages:

Ladder diagram: suitable for discrete logic control, following the convention of relay control.

Grafcet (Sequential Function Diagram): Designed specifically for sequential control, it can visually express process steps and transfer conditions.

PL7-2 provides both application development and diagnostic functions, and can be connected to a programmer or PC via a 9-pin terminal interface (20mA current loop) (adapter conversion to RS232 is required).

Directly expand the rack and wiring

4.1 Expansion Rack Components

The direct expansion rack is used to increase the number of I/O slots in the system, which includes:

An empty rack (all unused slots are equipped with dust covers)

A 1.2-meter-long extension cable

Expansion racks also offer short or standard formats:

TSX RKE 7: Short rack, 7 available slots

TSX RKE 8: Standard rack, 8 available slots

The expansion cable must be securely locked onto the dedicated connectors of the base frame and expansion rack. The maximum length of the cable is 1.2 meters and cannot be extended on its own, otherwise it may cause signal attenuation and communication errors.

4.2 Installation precautions

All slots are equipped with positioning devices (TSX RAC 40) and backplane connector covers to prevent module misplacement.

Empty slots must be sealed with dust covers (TSX RAC 50) to maintain IP20 protection level.

Grounding strips (TSX RAC 20/25) must be installed, especially when using TSX BLK 4 terminal blocks, to ensure reliable grounding of the system.

Module extraction requires the use of a specialized extraction tool (TSX MNC 30), and direct manual extraction is strictly prohibited to avoid damaging the circuit board.

Environmental specifications and electrical characteristics

5.1 Environmental conditions

Parameter Range

Working temperature+5 ° C~+55 ° C

Storage temperature -25 ° C~+70 ° C

Altitude 0~2000m

Protection level IP20 (compliant with IEC 664 and NF C 20040)

IP20 means that it can only prevent solid foreign objects with a diameter greater than 12.5mm from entering and is not waterproof. Therefore, PLC should be installed in a dry and dust-free control cabinet.

5.2 Power supply selection

Select power module based on on-site power supply type:

Communication version: rated 110/220V AC, 50/60Hz (TSX SUP 40, TSX SUP 702 required for TSX 47-25). Suitable for standard industrial power grids.

DC version: rated 24V DC or 48V DC (TSX SUP 41/42). Suitable for DC systems such as automobiles and ships, or for situations backed up by batteries.

Attention: The DC power supply must be stable, with ripple less than 5%, and a fuse or circuit breaker must be installed at the input end.

Maintenance and Upgrade Strategy for Old Production Lines

6.1 Spare parts procurement channels

Due to the complete discontinuation of the TSX 47 series, the original spare parts inventory is extremely low. Engineers can obtain it through the following channels:

Professional second-hand automation equipment suppliers (such as Artisan Technology Group, etc.) provide refurbished modules that have passed testing and come with warranty.

Auction websites or idle industrial trading platforms, but with high risks, require confirmation of module functionality.

Third party repair services can perform chip level repairs on damaged CPUs, power supplies, or I/O modules.