Analog Modules
4-7
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Table 4-4 Analog Input/Output Modules: Characteristics at a Glance
Module
Characteristics
SM 334;
AI 4/AO 2 x 8/8 bits
(-0CE01-)
SM 334;
AI 4/AO 2 x 12 bits
(-0KE00-)
Number of inputs 4 inputs in 1 channel group 4 inputs in 2 channel groups
Number of outputs 2 outputs in 1 channel group 2 outputs in 1 channel group
Resolution 8 bits 12 bits + sign
Measuring Method Adjustable for each channel
group:
• Voltage
• Current
Adjustable for each channel
group:
• Voltage
• Resistors
• Temperature
Output type Channel by channel:
• Voltage
• Current
Channel by channel:
• Voltage
Supports clocked
operation
No No
Programmable diagnostics No No
Diagnostic interrupt No No
Limit value monitoring No No
Hardware interrupt upon limit
violation
No No
Hardware interrupt at end of
cycle
No No
Substitute value output No No
Potential relationships • Non-isolated to CPU
• Galvanic isolation to load
voltage
Galvanic isolation to:
• CPU
• Of the load voltage
Special Features Not parameterizable, setting of
measurement and output type by
means of wiring
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