Detailed explanation of Siemens series PLC installation and wiring

This article introduces the detailed installation and wiring of Siemens PLC, including PLC models: Smart200, S7-300, S7-1200, S7-1500, etc.

Siemens 200 module common PLC wiring diagram

CPU SR20+EMDR32

Siemens S7-300 common module wiring diagram

CPU315+PS307 (power module)+SM321 (DI module)+SM322 (DO module)

Siemens S7-1200 common module wiring diagram

CPU1214C+SM1223

Siemens 1500 common module wiring diagram

The following is a detailed introduction to the S71500 hardware installation and wiring:

Hardware requirements

● 1 × CPU 1511-1 PN (6ES7511-1AK00-0AB0)

●1 S7-1500 load current supply PM 70W 120/230VAC (6EP1332-4BA00)

● 1 mounting rail (6ES7590-1AB60-0AA0)

● 1 digital input module DI 16x24VDC SRC BA (6ES7521-1BH50-0AA0)

● 1 digital output module DQ 16x24VDC/0.5A ST (6ES7522-1BH00-0AB0)

● 2 front connectors (6ES7592-1AM00-0XB0)

● 1 SIMATIC Memory Card with 4 MB (e.g. 6ES7954-8LBxx-0AA0)

● 1 Ethernet cable

Software requirements

● SIMATIC STEP 7 Professional V13 and above

● SIMATIC WinCC Advanced V13 or SIMATIC WinCC Professional V13 and above

Installation assembly steps

1. Install the load current source (PM) on the mounting rail.

2. Open the front cover and unplug the power connection.

3. Unplug the 4-pin connection plug and tighten the load current supply (PM).

4. Insert the U-shaped connector into the rear of the CPU.

5. Install the CPU on the mounting rail and tighten it.

6. Plug the U-shaped connector into the rear of the digital input module.

7. Attach the digital input module to the mounting rail and screw it tight.

8. Connect the digital output module to the mounting rail and screw it tight.

CPU wiring rules

Steps for wiring the power connection plug

1. Use an appropriate tool to pull out the connector cover.

2. Connect the power cord to the plug according to the wiring diagram. On the other side of the plug, the voltage information that the plug can be used after certification is marked. According to the information on the back of the plug, select the corresponding voltage by inserting the coding element.

3. Close the outer cover.

4. Tighten the screws on the power connection plug.

Wiring the load current supply (PM) to the CPU Steps

1. Wire the 4-pin connector plug of the load current source (PM).

2. Wire the 4-pin connector plug to the 4-pin power connection plug of the CPU.

Wiring steps for digital input modules

1. Insert the front connector into the pre-wiring position. There is no electrical connection between the front connector and the module at the pre-wiring position.

2. Secure the cables with cable ties.

3. Connect the load voltage 24 V DC to terminals 20 (M) and 19 (L+).

4. Insert a potential circuit bridge between the two bottom terminals.

Wiring steps for digital output modules

1. Insert the front connector into the pre-wired location.

2. Supply the DC 24 V supply voltage from terminals 20 (M) and 19 (L+) of the digital input module via terminals 40 (M) and 39 (L+) on the digital input module.

3. Connect four potential circuit bridges.

4. Connect terminals 30 and 40, and 29 and 39.

Steps for wiring the front connector

1. Connect the wires and tighten them according to the wiring diagram inside the terminal cover.

2. To relieve tension, use cable ties to secure the cables and pull tight.

3. Move the front connector from the pre-wiring position to its final position. At this point, the electrical connection between the front connector and the module has been established.

4. Note: The pre-wired front connector can be plugged directly in, e.g. to replace modules.

Steps for starting the CPU for the first time after powering on

1. Plug in the mains connection plug of the load current source (PM).

2. Connect the mains connection plug to the mains.

3. Insert the empty SIMATIC memory card into the CPU

4. Switch the switch on the load power supply (PM) to the RUN position. The CPU starts up.

The CPU starts up and is in STOP mode. Assigning the IP address via the display In this step, you set the IP address and subnet mask of the CPU.

step:

1. Navigate to Settings.

2. Select "Addresses".

3. Select the "X1 (IE/PN)" interface.

4. Select the menu item "IP Addresses".

5. Set the IP address to 192.168.0.10.

6. Press the RIGHT arrow key on the module.

7. Set the subnet mask to 255.255.255.0.

8. Press the "Down" arrow key on the module to select the menu item "Apply" and confirm your settings with "OK".

Siemens PLC wireless communication