2.2 Properties
The electronic weighing system has the following properties:
● Technical properties
– One channel
– Interfaces:
Load cell connection with 10 V DC supply voltage; 0.5 µV/e; 3x6000 d
±20,000,000 digit resolution at 1 kHz sampling rate
Digital input signals DI.0, DI.1 and DI.2 24 V DC
Digital output signals DQ.0, DQ.1 and DQ.2 24 V DC
Counter input CI; up to 9 kHz; 24 V DC
Supply voltage L+/M
Serial interface RS485
Ethernet interface (RJ45 socket)
● Monitoring of the load cell for impedance, wire break, short-circuit and faulty supply voltage
● Hardware interrupts configurable
● Input filters for suppression of interferences at encoder inputs and digital inputs can be
configured
● Calibratable alibi memory for up to 1 000 000 entries.
● Supported load cell types
– Analog strain gauge load cells with characteristic values of 1 to 4 mV/V
● Supported system functions
– Firmware update
– Identification data I&M
2.3 Version dependencies of the functions
The electronic weighing system supports the following functions:
Function Firmware ver‐
sion of the
electronic
weighing sys‐
tem
Configurable as of
STEP 7 (TIA
Portal)
GSD
PROFINET IO PROFIBUS
DP
Firmware update V1.0 or higher V15 X —
I&M identification data V1.0 or higher V15 X X
Centralized operation on
CPU 151xSP
V1.0 or higher V15 — —
Product overview
2.3 Version dependencies of the functions
Technology module TM SIWAREX WP351 HF
16 Operating Instructions, 01/2020, A5E47521010-AA