Weidmuller WI-MOD-E-G Manual de usuario descargar pdf (Pagina 10)

Wireless I/O Expansion I/O Units—Introduction 900 MHz

WI-I/O–EX-1-S Expansion I/O Units (Serial I/O)

Typical Applications

Expansion I/O for WI-I/O 9 wireless units

- up to 31 x WI-I/O-EX-1-S units can be connected to each wireless unit via RS485 (up to 2 km long).

Serial I/O multiplexer

- transfer I/O via RS485— up to 32 units per multi-drop link.

Expansion I/O for Modbus devices

- up to 31 x WI-I/O-EX-1-S units can be connected to each Modbus master via RS485 (up to 2 km long).

Features

• Multi I/O channels— monitoring and control functions

• Connected via RS485 multi-drop

• Selectable communications via Modbus protocol (both RTU and ASCII formats)

• Sensor signals connected at one module (input signals) are transmitted to another module where the signals are re-created

as output signals, or passed via serial to a host device such as a PLC or SCADA system

• Connect to WI-I/O 9 wireless I/O units for up to 31 serial addresses per wireless unit

• Connect WI-I/O-EX-1-S units together to form a serial multi-drop I/O system - up to 32 serial addresses per multi-drop link—

no Master device is required to control communications

• Connect up to 99 x WI-I/O-EX-1-S units as multi-drop Modbus I/O

(RS485 extenders/isolators required for more than 31 units per single multi-drop length)

• RS485 multi-drop up to 2 km (1 mile) depending on installation environment

• Three I/O versions available

67200005035 67200005036 67200005037

WI-I/O-EX-1-S -11 -12 -13

Digital inputs up to 16 up to 8 up to 8

Voltage-free contacts

Digital outputs up to 16 up to 8 up to 8

FET

Analog inputs 0 4 “floating”/ 8 commoned 0

0-20mA / 0-10V

Analog outputs 0 0 8 sink / source

0-20mA / 0-10V

Pulse inputs 4 0 0

1KHz

Pulse outputs 8 8 8

15Hz 15Hz 15Hz

Note: Digital inputs and outputs are combined channels. When a channel is used as an output, it is not available as an input. Pulse and

digital I/O are same connection.

• Peer-to-peer communications; Exception reporting; Reliable self-checking messages;

Any input on any unit can be linked to any output on any unit. Inputs can be linked to multiple outputs;

Serial communications 9.6Kb/s

• Alternate Modbus RTU or Modbus ASCII slave protocol, serial communications configurable up to 115.2Kb/s,

7 or 8 data bit format

• External I/O plus internally calculated values - analog setpoint status, pulse rate and pulse total,

power supply voltage, power supply alarm

• Setpoint status generated by comparing analog inputs to high and low setpoints

• Analog inputs selectable as “floating” dual-terminal inputs or commoned single-terminal inputs;

Configurable current (0-10/0-20/4-20mA) or voltage (0-5/0-10/1-5V).

• Analog outputs selectable as single-terminal source or sink outputs. Configurable current (0-10/0-20/4-20mA)

or voltage (0-5/0-10/1-5V). Configurable scaling, zero and span parameters.

• Pulse inputs generate separate pulse count value and a pulse rate value. Pulse rates are treated as internal analog registers

with a configurable maximum value.

• Multiple communication-failure diagnostics with output status. Fail-to-transmit alarm and fail-to-receive alarm status.

• Class 1 Div 2 hazardous areas approval

• Input measurement display and output “forcing” diagnostics.

• Communication logging diagnostics.

• Easy-to-use E-Series Windows configuration.

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Weidmuller WI-MOD-E-G Manual de usuario Pagina 10

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