4-Channel Analog Input for ET 200SP
The Siemens 6ES7144-4PF00-0AB0 is a 4-channel analog input module for the ET 200SP remote I/O system, designed for thermocouple and low-voltage measurements. Diagnostic alarm is parameterizable, and the module reports group errors via the SF red LED – useful for quick fault isolation on the line. Compact package (35 mm depth, 45 mm width, 130 mm height) fits standard ET 200SP backplane slots; total power loss is 0.7 W typical.
Critical Ratings & Fit
Input resistance is 10 MΩ for most thermocouple types, ensuring negligible loading on low-impedance sensors. Isolation tested at 707 V DC (type test) between channels and the backplane; common-mode voltage between inputs (UCM) can reach 20 Vpp AC. Integration time selectable from 2,5 ms to 100 ms; shielded cable max. 30 m. No hardware interrupt output – alarms are software-parameterized. Plan polling or diagnostics in your logic.
Sourcing & Lifecycle
This order code carries a current-production lifecycle – no last-time-buy clock. For a critical line, buy one for the cabinet; a spare on hand saves a shift when a channel fails on a high-temperature zone thermocouple.