Analog modules   
6.16 Analog IO module SM 334; AI 4/AO 2 x 12 bit; (6ES7334-0KE00-0AB0) 
  S7-300 Automation System Module data 
6-138  Manual,  08/2006, A5E00105505-04 
6.15.4  Additional information to SM 334; AI 4/AO2 x 8/8 bit 
Unused channels 
Always short-circuit unused input channels, and connect these to M
ANA
. This optimizes noise 
immunity of the analog module. 
Leave unused output channels open. 
6.16  6.16 Analog IO module SM 334; AI 4/AO 2 x 12 bit; 
(6ES7334-0KE00-0AB0) 
Order number: : "Standard module" 
6ES7334-0KE00-0AB0 
Order number: "SIPLUS S7-300 module" 
6AG1334-0KE00-2AB0 
Properties 
●  4 inputs in 2 groups and 2 outputs in one group 
●  Resolution of 12 bits + sign 
●  Measuring method adjustable per channel group: 
–  Voltage 
–  Resistance 
–  Temperature 
●  Electrically isolated to the backplane bus interface 
●  Electrically isolated to load voltage 
Terminal assignment 
The following diagrams show wiring examples. 
 
 
Note 
When you switch the rated load voltage supply on/off, the output may assume incorrect 
interim values below the rated load voltage.