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7MH4980-1AA01

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Siemens 7MH4980-1AA01

SIMATIC S7-1500, TM SIWAREX WP521 ST, single-channel weighing module for one platform or hopper scales with analog load cells / strain gauges (full bridges), 3xDI, 3xDQ, 1xRS485, 1xEthernet, 1xLC load cell interface (1-4mV/V)

General information
Product type designation		TM SIWAREX WP521 ST
Firmware version		V1.0.0
● FW update possible		Yes
Product function
● I&M data		Yes; I&M0 to I&M3
● Isochronous mode		Yes
Engineering with
● STEP 7 TIA Portal configurable/integrated from version		STEP 7 V14 or higher
● PROFIBUS from GSD version/GSD revision		GSD Revision 5
● PROFINET from GSD version/GSD revision		GSDML
Installation type/mounting
Rail mounting		Yes; S7-1500 mounting rail
Supply voltage
Load voltage L+
● Rated value (DC)		24 V
● permissible range, lower limit (DC)		19.2 V
● permissible range, upper limit (DC)		28.8 V
● Reverse polarity protection		Yes
Power
Power consumption from the backplane bus		0.55 W
Power loss
Power loss, typ.		2.4 W
Address area
Address space per module
● Inputs		32 byte
● Outputs		32 byte
Digital inputs
Number of digital inputs		3
Digital inputs, parameterizable		Yes
Input characteristic curve in accordance with IEC 61131, type 3		Yes
Digital outputs
Number of digital outputs		4
Digital outputs, parameterizable		Yes
Short-circuit protection		Yes
Digital output functions, parameterizable
● Switching tripped by comparison values		Yes
● Freely usable digital output		Yes
Switching capacity of the outputs
● with resistive load, max.		0.5 A; Per digital output
Output voltage
● Type of output voltage		DC
Output delay with resistive load
● "0" to "1", max.		65 µs
● "1" to "0", max.		110 µs
Total current of the outputs
● Current per module, max.		2 A
Cable length
● shielded, max.		500 m
● unshielded, max.		150 m
Encoder
Connection of signal encoders
● For strain gauges (full bridges) with 4-conductor connection		Yes
● For strain gauges (full bridges) with 6-conductor connection		Yes
● Resistance of full bridge, min.		40 Ω
● Resistance of full bridge, max.		4 100 Ω
Interfaces
Number of RS 485 interfaces		1
1. Interface
Interface types
● RS 485		Yes
2. Interface
Interface types
● RJ 45 (Ethernet)		Yes; 10/100 Mbit/s
● Number of ports		1
Interrupts/diagnostics/status information
Substitute values connectable		Yes
Alarms
● Diagnostic alarm		Yes
● Hardware interrupt		Yes
Diagnoses
● Monitoring the supply voltage		Yes
● Wire-break		Yes
● Short-circuit		Yes
Diagnostics indication LED
● RUN LED		Yes
● ERROR LED		Yes; red LED
● MAINT LED		Yes; Yellow LED
● Monitoring of the supply voltage (PWR-LED)		Yes; green LED
● Channel status display		Yes; green LED
● for channel diagnostics		Yes; red LED
Integrated Functions
Counter		No
Fast mode		No
Load cell
● Non-automatic weighing instrument		NAWI
● Sampling rate		100 Hz
● Resolution of input signal		±1 000 000 parts pro mV/V
● Common mode voltage, min.		0.25 V
● Common mode voltage, max.		4.75 V
● Cable length, max.		800 m; when using the SIWAREX 7MH4702-8AG cable
Measuring functions
Measuring range
— -1 mV/V to +1 mV/V		Yes
— -2 mV/V to +2 mV/V		Yes
— -4 mV/V to +4 mV/V		Yes
Potential separation
Potential separation channels
● between the channels and backplane bus		Yes
Isolation
Isolation tested with		707 V DC (type test)
Degree and class of protection
IP degree of protection		IP20