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#Modbus rtu io module manual#
MR-DO4 is equipped with a manual control facility for manual switching of the relays. We recommend to protect the relay contacts additionally by a RC-element for high inductive loads. They are suitable to operate electrical components such as motors, contactors, lamps, sun-blinds etc. The Modbus modules with 4 digital outputs are designed for local switching operations. The inputs areuniversally configurable and can be scanned via a Modbus-Master.Setting of the slave address, bit rate and parity is done with the two address switches (x1 / x10) on the front. It is suitable to record resistance or voltage values offor example passive and active temperature sensors electricalventilation or mixing valves, valve positions etc. The Modbus module with 8 individually configurable resistance or voltage inputs is designed for local switchingoperations. The module address, the baud rate and the parity are set by means of two address switches on the front. The inputs can be scanned by means of standard objects via a Modbus master. In case of a power failure, the last counter readings are saved. This allows very good integration of the module into an energy controlling system. It is suitable for counting S0 counter pulses. The Modbus module with 4 S0 inputs to DIN EN 62053-31 class A was developed for decentralized switching tasks. Setting of the slave address, bit rate and parity is done with the two address switches (x1 / x10) on the front. The inputs can be scanned via a Modbus-Master.
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The inputs can be operated as contact and voltage inputs (A1, 24VAC/DC, jumper J - A2) or with actuation to GND (A2, jumperJ - A1), depending on the setting of the jumper J. It is suitable to record potential-free switching states as for example electrical limit switches of ventilation valves or auxiliary contacts of power contactors. The Modbus module with 10 digital inputs is designed for local switching operations. The slave address, bit rate and parity is done with the two address
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The inputs canīe operated by potential-free switches or contacts and as voltage Valves or auxiliary contacts of power contactors. States as for example electrical limit switches of ventilation It is suitable to record potential-free switching The Modbus module with 4 digital inputs is designed for local These compact cost-effective modules are available with analog and digital inputs and outputs in varying combinations. For those installations that support a fieldbus solution such as Modbus RTU, Contemporary Controls provides solutions for expanding the number of I/O points in the field.