Siemens PLC - Wiring SM1234 Analog Card

This is how to wire to the standard ANALOG I/O SM 1234, 4AI/2AO, +/-10V, OR 0-20 MA analog card (Part number 6ES7234-4HE32-0XB0). 

 The analog card looks like this:

siemens-analog-card.jpg

Power

Wire 24VDC from the main S1200 CPU into this card.  

 S1200 CPU

Analog Card
24VDC (L+) L+
0VDC (M) M

 siemens-plc-connections.jpg

Analog Inputs

Wire your analog inputs up to one of the four analog inputs. 

  +10V -10V or 0V
Analog 0 0+ 0-
Analog 1 1+ 1-
Analog 2 2+ 2-
Analog 3 3+ 3-

 

Siemens S1200 PLC Analog Input

Wiring

Wire your 0-10V analog inputs into the PLC as follows:

Terminal

Description

AI

Analog Inputs

2M

0V

0

0-10V Analog Input 1

1

0-10V Analog Input 2

 siemens-analog-inputs.png

Software Setup

For the standard Siemens PLC program, to use this as spindle load, configure the Machine Parameters as follows:

plc-plugin-settings.png

Set the Spindle Load Meter Register under the Spindle configuration to Modbus. Then select Register and then PLCData1 for the 0-10V Analog Input 1. 

plc-signal-setup.png

Set Spindle Load Input Scale Max to 1000 by default. (Needs confirmation.) 

 

For 0-10V Analog Input 2, set it to PLCData2.

Note: For grinders, the Grinding Wheel Load meter uses this value. The Reg Wheel load meter use the Sub Spindle Load Meter Register. 

Keywords: 14468

 

Keywords: 14466

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