WAGO 2857-535/000-001

Commercial Data

• Country of origin
  • DE
• Customs tariff number
  • 85437090300
• GTIN
  • 4055143655514
• Packaging type
  • Box

Communication

• Addressing
  • Via rotary encoder switch: 1 … 99Via service interface: 1 … 247 (rotary encoder switch set to “0”)
• Baud rate
  • 9.6 kBd … 19.2 kBd
• Bus length (max.)
  • ≤ 1000 m
• Communication
  • Modbus® RTU
• Interface
  • RS-485 (2-wire)
• Number of devices (max.)
  • 64
• Terminating resistor
  • Can be activated; 150 Ω; 120 Ω + 1 nF

Configuration

• Configuration options
  • WAGO Interface Configuration Software || WAGO Configuration Display || WAGO Interface Configuration App || Rotary encoder switch

Connection Data

• Connection technology
  • Push-in CAGE CLAMP®
• Connector
  • 6 x picoMAX® for daisy chain configuration
• Fine-stranded conductor
  • 0.2 … 2.5 mm² / 24 … 12 AWG
• Solid conductor
  • 0.2 … 2.5 mm² / 24 … 12 AWG
• Strip length
  • 9 … 10 mm / 0.35 … 0.39 inches
• WAGO connector
  • picoMAX® 5.0

Environmental Requirements

• Ambient temperature (operation)
  • -40 … +70 °C
• Ambient temperature (storage)
  • -40 … +85 °C
• Operating altitude (max.)
  • 2000 m
• Relative humidity
  • 5 … 95 % (non-condensing)
• Temperature range of connection cable
  • ≥ (Tambient + 10 K)
• Temperature range of connection cable (UL)
  • 85 °C

Input

• Input signal type
  • RTD sensors || Potentiometer || Resistance || TC sensors

Input (Resistors)

• Input range (potentiometer)
  • 0 … 10 kΩ
• Input range (resistor)
  • 0 … 10 kΩ
• Measurement span (min.)
  • 50 Ω

Input (Rtd Sensors)

• Measurement span (RTD) min.
  • 50 K
• Sensor connection
  • 2-wire; 3-wire; 4-wire; differential; potentiometer
• Sensor power supply (RTD) max.
  • ≤ 0.5 mA
• Sensor types (RTD)
  • Pt10 … Pt2000 (expandable)
• Temperature measurement range (RTD)
  • -200 … 850°C

Input (Tc Sensors)

• Cold junction compensation
  • ON/OFF (Default: ON)
• Cold junction error
  • 3 K (typ. 2 K )
• Measurement span (TC) min.
  • 100 K
• Sensor types (TC)
  • Type J || Type K || Type E || Type R || Type N || Type S || Type T || Type B || Type C
• Temperature measurement range (TC)
  • -210 … 1200 °C (Type J); -200 … 1372 °C (Type K); -200 … 1000 °C (Type E); 250 … 1768 °C (Type R); -200 … 1300 °C (Type N); -50 … 1664 °C (Type S); -200 … 400 °C (Type T); 250 … 1820 °C (Type B); 0 … 2320 °C (Type C)

Insulation Parameters(Ul)

• Insulation type (input/communication interface/relay output/supply)
  • Reinforced insulation (safe isolation)
• Insulation type (input/DIN-rail contact/relay output/supply)
  • Reinforced insulation (safe isolation)
• Overvoltage category
  • II
• Pollution degree
  • 2

Material Data

• Fire load
  • 2.168 MJ
• Weight
  • 13.000 g

Measurement Error

• Temperature coefficient
  • ≤ 0.01 %/K
• Transmission error for the set measurement range
  • ≤ (100 K/set measurement range [K]) %
• Transmission error (typ.)
  • ≤ 0.1 % at full measurement span

Mechanical Data

• Mounting type
  • DIN-35 rail

Notes

• Note
  • This product is supplied with 24 VDC, which can be commoned using lateral push-in type jumper bars: (6.1) US+ (BR) and (6.2) GND 2 (BR). With this variant, it is necessary to ensure that the maximum permissible total current of 1 A is not exceeded.

Output Modbus

• Addressing
  • Via rotary encoder switch: 1 … 99Via service interface: 1 … 247 (rotary encoder switch set to “0”)
• Bus length (max.)
  • 1000 m
• Connector
  • 6 x picoMAX® for daisy chain configuration
• Number of devices (max.)
  • 64
• Parameter
  • Read input registers (0x04):Measured value: address (0x0000); data type (float); access (read)Relay status: address (0x0002); data type (word); access (read)
• Parity
  • Even; others can be configured
• Terminating resistor
  • Can be activated; 150 Ω; 120 Ω + 1 nF

Output (Relay)

• Configurable rise/fall delay time (relay)
  • 0 … 60 s (via software)
• Dielectric strength (open contact) (AC, 1 min)
  • 1 kVrms
• Number of changeover/switchover contacts
  • 1
• Number of switching thresholds (relay)
  • 1 or 2 (adjustable)
• Switching voltage (max.)
  • AC 250 V

Physical Data

• Depth from upper-edge of DIN-rail
  • 107 mm / 4.213 inches
• Height
  • 110 mm / 4.331 inches
• Width
  • 22.5 mm / 0.886 inches

Signaling And Communication

• Baud rate
  • 9.6 kBd … 19.2 kBd
• Communication
  • Modbus® RTU
• Configuration options
  • WAGO Interface Configuration Software || WAGO Configuration Display || WAGO Interface Configuration App || Rotary encoder switch
• Number of devices (max.)
  • 64
• Terminating resistor
  • Can be activated; 150 Ω; 120 Ω + 1 nF

Signal Processing

• Software filter (adjustable)
  • Moving average value (filter level: 30)
• Step response (typ.)
  • 130 ms (2-wire); 700 ms (3-wire); 700 ms (4-wire); 600 ms (Differential); 500 ms (Potentiometer); 150 ms (cold junction compensation (Off)); 400 ms (cold junction compensation (ON))

Specifications

• Product Group Code
  • 0006

Standards And Specifications

• Conformity marking
  • CE
• EMC emission of interference
  • EN 61000-6-3; EN 61326-2-3
• EMC immunity to interference
  • EN 61000-6-2; EN 61326-2-3
• Standards/specifications
  • EN 61010-1 || EN 61373

Supply

• Current consumption at nominal supply voltage
  • ≤ 50 mA
• Nominal supply voltage US
  • DC 24 V
• Power supply type
  • 24 VDC
• Supply voltage range
  • -60 … +30 %

Test Voltage

• Test voltage (input/communication interface/relay output/supply)
  • 3 kVAC; 50 … 60 Hz; 1 min
• Test voltage (input/DIN-rail contact/relay output/supply)
  • 3 kVAC; 50 … 60 Hz; 1 min
• Test voltage (input/output/supply)
  • AC 3 kV; 50 Hz; 1 min