Integration in S7-200 automation systems

• CPU 222 (6ES7212-1*B23-0XB0)
• CPU 224 (6ES7214-1*D23-0XB0)
• CPU 224XP (6ES7214-2*D23-0XB0)
• CPU 226 (6ES7216-2*D23-0XB0)

Communication interfaces

SIMATIC S7 Bus, RS 232, TTY

Connection of remote displays (through TTY interface)

Weight value (gross, net)

Adjustment of scale settings

Using PC parameterization software SIWATOOL MS (RS 232)

Measuring properties

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

0.05%

• Internal resolution
  Data format of weight values

65 535
2 byte (fixed-point)

Number of measurements/second

50 or 30

Digital filter

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

Weighing functions

• Weight values

Gross, net

• Limit values

2 (min./max.)

• Zero-setting function

Per command

• Tare function

Per command

• Tare specification

Per command

Load cells

Strain gages in 4-wire or 6-wire system

Load cell powering

• Supply voltage U_s (rated value)

6 V DC typ.

• Max. supply current

≤ 150 mA

Permissible load resistance

• R_Lmin

> 40 О©

• R_Lmax

< 4010 О©

With SIWAREX IS Ex interface or SIWAREX Pi:

• R_Lmin

> 87 О©

• R_Lmax

< 4010 О©

Load cell characteristic

1 mV/V ... 4 mV/V

Permissible range of measuring signal (at greatest set characteristic value)

-2.4 ... +26.4 mV

Max. distance of load cells

500 m

Intrinsically-safe load cell powering

Connection to load cells in Ex zone 1

Optionally over SIWAREX IS Ex interface or SIWAREX Pi:

Ex approvals and safety

CE, ATEX 95, FM, cUL_US Haz. Loc.

Auxiliary power supply

• Rated voltage

• Max. current consumption

• Rated voltage (of CPU)
  • Max. current consumption

24 V DC

130 mA

5 V DC

140 mA

IP degree of protection to DIN EN 60529; IEC 60529

IP20

Climatic requirements

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

• Vertical installation

0 ... 55 °C (32 ... 131 °F)

• Horizontal installation

0 .. +40 °C (32 ... 104 °F)

EMC requirements

according to EN 61326, EN 45501, NAMUR NE21, Part 1

Dimensions

71.2 mm x 80 mm x 62 mm (2.80 in x 3.15 in x 2.44 in)