Siemens SIMATIC Distributed I/O ET 200eco PN Operating Instructions Manual page 165

I/O device analog input/analog output
10.1 I/O device analog input
Technical specifications
Insulation
Insulation test voltage
• Ethernet interface
• All other circuit elements
Standards, approvals, certificates
Suitable for applications according to AMS 2750
Suitable for applications according to CQI-9
Electrical isolation
• Between 1L+ and 2L+
• Between 1L+, channels and all other circuit ele­
ments
• Between channels
• Between Ethernet and all other circuit elements Yes
1
"No temperature compensation" is always run when using the measuring type ±80 mV regardless of
the configured temperature compensation.
2
With 3-wire resistance measurement (and thermal resistor) the measuring resistances and the line
resistances are updated in alternating cycles. Rapid changes in the measuring resistance therefore
impair the accuracy.
3
For thermocouples, the information refers to the temperature range from -100 °C to nominal value.
NOTE
The accuracy information is valid for static thermal states and changes in ambient temperat­
ure < 1 K/h.
The I/O device achieves the highest accuracy with the 4-wire connection system (see technic­
al specifications above).
Although the 3-wire connection system compensates for the missing wire, the accuracy is
impaired. With the 2-wire connection system, the line resistances considerably impair the
accuracy.
In the last two cases this impairment is not determinable.
NOTE
With the 3-wire connection system, the compensation of the missing cable is only ensured if
all three cores in the cable have the same length and cross-section.
166
1500 V (IEEE802.3, Type Test)
rms
707 V DC (type test)
Yes; Declaration of Conformity, see online support
entry 109757262
Yes; based on AMS 2750 E
Yes
No
No
Operating Instructions, 06/2022, A5E01250250-AN
ET 200eco PN