Integration in automation systems

• S7-300

Direct integration

• S7-1500

Through ET 200M

• S7-400 (H)

Through ET 200M

• PCS 7 (H)

Through ET 200M

• Automation systems from other vendors

Through ET 200M

• Stand-alone (without SIMATIC CPU)

Possible with IM 153-1

Communication interfaces

• SIMATIC S7 (P bus)
• RS 232
• TTY

Connection of remote displays
(through TTY serial interface)

Gross, channel 1, 2 or default value 1, 2

Adjustment of scales settings

Through SIMATIC (P bus) or PC using SIWATOOL U (RS 232)

Measuring properties

Error limit to DIN 1319-1 of full-scale value at 20 °C ± 10 K (68 °F ± 10 K)

0.05%

Internal resolution ADC
Data format of weight values

65535
2 byte (fixed-point)

Number of measurements/second

50

Digital filter

0.05 ... 5 Hz (in 7 steps), mean value filter

Weighing functions

Weight values

Gross

Limit values

2 (min./max.)

Zero setting function

Per command

Load cells

Strain gages in 4-wire or 6-wire system

Load cell powering

Supply voltage U_s (rated value)

6 V DC¹⁾

Max. supply current

≤ 150 mA per channel

Permissible load resistance

• R_Lmin

> 40 О© per channel

• R_Lmax

< 4010 О©

With Ex(i) interface

• R_Lmin

> 87 О© per channel

• R_Lmax

< 4010 О©

Permissible load cell characteristic

Up to 4 mV/V

Max. distance of load cells

500 m²⁾
150/500 m for gas group IIC

500 m²⁾ for gas group IIB (see SIWAREX IS Manual)

Intrinsically-safe load cell powering

Optional (Ex interface) with SIWAREX IS

Auxiliary power supply

Rated voltage

24 V DC

Max. power consumption

150 mA (single-channel) / 240 mA (dual-channel)

Current consumption on backplane bus

≤ 100 mA

Certification

ATEX 95, FM, cUL_US Haz. Loc.

IP degree of protection to DIN EN 60529; IEC 60529

IP20

Climatic requirements

T_{min (IND)} to T_{max (IND)}) (operating temperature)

• Horizontal installation

0 ... +60 °C (32 ... 140 °F)

• Vertical installation

0 ... +40 °C (32 ... 104 °F)

EMC requirements according to

according to NAMUR NE21, Part 1; EN 61326

Dimensions

40 x 125 x 130 mm (1.58 x 4.92 x 5.12 in)