Distributed I/O System ET 200S

Digital electronic modules
3.1 Parameters for digital electronic modules
2DI 24 VDC
High Feature
4DI 24 VDC
High Feature
4DI 24 to 48
VUC High
Feature
1 The input delay applies to "0" to "1" and to "1" to "0".
2 Short circuit of the sensor supply.
2DI/ 4DI 24 VDC
Standard
4DI 24 VDC/SRC
Standard
2DI 120 VAC
Standard
4DI 230 VAC
Standard
Range of values Default
setting
3 Can only be assigned parameters for the IM151-1 High Feature interface module and the IM151-7 CPU
Applicability
Channel 3
4 If the wire break check is activated, all the unused inputs must be stabilized to prevent them from triggering a module
wire break. To do this, connect a resistor between terminal 24/48 V (3, A4, 7, A8) and the free input. The resistor must
provide at least 0.5 mA of input current (see "Sensor Switching" in the table of technical specifications). This ensures that
sufficient current is flowing to prevent wire break detection.
The sensor must supply at least 0.5 mA when switched off (otherwise wire break will be detected when switched off).
Alternatively, a resistor can be connected parallel to the sensor terminals (the current must be at least 0.5 mA).
3.1.2 Parameters for 4DI NAMUR
Table 3-2 Parameters for 4DI NAMUR
This table shows the parameters for 4DI NAMUR:
4DI NAMUR Value range Default setting Applicability
Diagnostic interrupt • Enable
• Disable
Sensor type • Channel disabled
• NAMUR sensor
• Open single contact
• Single contact, closed
with 10 kΩ
• NAMUR changeover
contact
• Open changeover
contact
• Changeover contact,
closed with 10 kΩ
Pulse stretching • None
• 0.5 s
• 1 s
• 2 s
Diagnostics
• Enable
No sensor supply
• Disable
Disable Module
Channel disabled Channel
None Channel
Disable Module
ET 200S
3-2 Manual, 12/2005, A5E00514527-03