Schneider Electric P342020

This is a CPU module from Schneider’s M340 series.

It is a P34 2020 type PLC CPU.

This module consists of 2 PCBs. I named them power supply board and CPU board.

The PCB are well designed, multi layer ones, as can be seen, the assembly is high quality.

The processing power comes from the Atmel AT91RM9200 32 bit ARM processor.

Unfortunately I haven’t managed to figure out what is the actual type of the 2 ICs under the processor (the 2 pieces of “IEG47 D9FJB”).

Additional to the careful PCb design the module has a steel shielding around the 2 PBCs, which makes it even more noiseless and more protected from EMI.

The 2 PCBs together:

The power supply board’s front side:

The power supply board’s back side:

The CPU board’s front side:

The CPU board’s back side:

URL: M340 P34 2020

Schneider Electric AMI0810

8 channel, 16 bit analog input module.

Nicely designed, over-engineered PCB.

Note that the A/D converter is a 24 bit type (!) but in the PLC’s process image it transfers only the 16 MSBs.

Again, the microcontroller that connects to the backplane is a unique “Schneider brand” type (1NTC012659).

If anyone has some information about what type of IC is it, please let me know!

All the used components seem to be the highest quality.

Front side of the PCB:

Back side of the PCB:

URL: Schneider AMI0810

Schneider Electric EHC0800

This is a counter input PLC module from Schneider.

It has 8 / 4 counting input (depending on the operating mode), counting rate at a maximum of 10 kHz.

All the counting functions are done by the “Schneider brand” microcontroller.

The inputs are galvanically separated by the 16 optocouplers.

Unfortunately I haven’t managed to figure out what type of optocouplers they are, their markings only says: R1A.

Nice PCB, good hardware designer job.

Front side of the PCB:

Back side of the PCB:

URL: Schneider EHC0800

Schneider Electric DDO3202K

Here is the inside of a Schneider DDO3202K, 32 digital output PLC module.

The PCB is a well designed one. Looking at the components used, some may think it is over designed, but this way it is almost undestroyable.

The connection with the backplane is done via a microcontroller (probably 16 or 32 bits), but it has a unique “Schneider” brand: 1NTC013062.

The digital outputs are separated (galvanically) into two groups (2×16 digital outputs).

The galvanic separation is done between the 2×16 digital inputs and the backplane connection.

Front side of the PCB:

The back side of the PCB:

URL: Schneider DDO3202K

Beckhoff EL2809

Here is a photo of a Beckhoff EL2809, 16 channel, 24 V,  digital output module.

There is a nicely designed PCB inside the housing.

No microcontroller used, just a single ET1200 EtherCAT Slave Controller ASIC, which does all the “intelligent” functions.

The galvanic separation is done with 16 pieces of LTV-356T optocouplers.

The outputs are fed by 2 VN808 ICs

All the 16 signalling LEDs show the actual state of the EtherCAT side, not the voltage on the output pins, so if one output connects to a short circuit the corresponding LED will still be ON.

URL EL2809

Beckhoff EL1809

Here is a photo of a Beckhoff EL1809, 16 channel, 24 V,  digital input module.

There is a nicely designed PCB inside the housing.

No microcontroller used, just a single ET1200 EtherCAT Slave Controller ASIC, which does all the “intelligent” functions.

The galvanic separation is done with 16 pieces of LTV-356T optocouplers.

Note that, on the input, the front-end consists of 4 pieces of CLT3-4B ICs, which is an elegant solution for a “simple” digital input.

All the 16 signalling LEDs show the actual state of the INPUT, not the data on the EtherCAT side.

URL: EL1809

Phoenix Contact MCR-f-UI-DC

This is a frequency input analogue output interface.

It accepts frequencies up to 120 kHz, and provides 0-10V or 4-20mA output proportional to the input frequency.

The main board shown below:

Well designed 2 layer PCB, with a 16-bit microcontroller.

 

The power supply and connector board front side:

The power supply and connector board back side:

URL: Phoenix Contact MCR-f-UI-DC

Schmersal AZR 200 AR

Here is a safety relay from Schmersal.

The PCB is a simple 2 layer one.

The main components are the 2 Panasonic safety relays: SFN4D

The exact link to these particular relays: SFN4D-DC 12V

Front of the PCB:

And the back side of the PCB:

URL: Schmersal AZR 200 AR

Beckhoff KL4032

Beckhoff KL4032, 2 channel, 12 bit, -10 V – +10 V output module.

Again, a multi layer PCB.

KL is the “older” series of Beckhoff’s I/O modules, it incorporates the K-bus connection interface, which is basically an INTERBUS interface, but Beckhoff names it K-Bus (Koppler-Bus).

The microcontroller is one from the PIC16F series, the actual type cannot be seen.

The back side of the PCB couldn’t be shown, because it was assembled once and there’s no way to disassemble without desoldering one of the LEDs.

On the back side there are 3 ICs:

Beckhoff BK200A. Probably this is the INTERBUS protocol IC, but has a “Beckhoff brand”.

AD8522: dual 12 bit DAC.

OP482G: quad JFET operational amplifier.

URL: Beckhoff KL4032

Beckhoff KL3062

Here is the inside of a Beckhoff KL3062, 2 channel, 12 bit, 0-10 V input module.

Well designed multi layer PCB.

KL is the “older” series of Beckhoff’s I/O modules, it incorporates the K-bus connection interface, which is basically an INTERBUS interface, but Beckhoff names it K-Bus (Koppler-Bus).

The main ICs are shown in the picture below.

The microcontroller is a PIC16F something, running at 16 MHz.

The back side of the PCB couldn’t be shown, because it was assembled once and there’s no way to disassemble without desoldering one of the LEDs.

On the back side there is only one bigger (44 pins) IC named Beckhoff BK200A. This must be the INTERBUS protocol IC, just named in a “Beckhoff way”.

URL: Beckhoff KL3062