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Analogue & Digital Multi-I/O Module 24 VDC

Code: RM-0014/

Price:  Call for Pricing

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16 analogue outputs. One 12 bit isolated analogue input. Two digital inputs. Four relay outputs. 16 auxiliary LED/digital outputs. ASCII or communications using RS232 or RS485. Plug-in screw terminal connections 5 A 230 AC relays. Up to 32 modules can be multi-dropped using RS485 with the same wire pair up to 1000 m. Customised applications using other products.
  • Chassis mounting in suitable enclosure.
  • Power requirement 24 VDC (23 V to 27 V) at 300 mA.
  • Demultiplexer or Remote Magic operating modes.
  • In demultiplexer mode can be used to convert 16 sequentially sampled analogue process signals into 16 separate analogue outputs.
  • Basic 12 bit A/D and D/A accuracy.
  • Modbus RTU or Remote Magic ASCII protocol.
  • Various communications and signal level alarm relay output options.
  • Normally open and normally closed relay contacts available.
  • Facility for expansion with and 16 digital or relay outputs.
  • Watchdog used to constantly monitor the microprocessor power and activity.
  • Various LEDs are used to indicate power supply status, communication status (RX and TX), microprocessor status and the state of each output.
  • The level at power-on of each analogue and digital output can be preset to avoid dangerous initial conditions.
  • RS485 and RS232 serial communications at 9 600 bits/sec and 19 200 bits/sec.
  • Operating temperature -10 °C to 60 °C.
  • Dimensions 267 x 195 x 40 mm (width x length x height).
  • Mass approximately 300 g without enclosure.  
Serial communication using the Remote Magic Protocol:
@address, command, register, data, checksum
where: @ - this character must be transmitted to signal the start of the command sequence
address - the module address

command - 1 Read Configuration
                2 Read Registers
                3 Write Registers
                4 not used
                5 Read Run Time
                6 not used
                7 Read Bulk Data
                8 Identify All Attached
register - the register number as applicable to the respective command.
data - the data as applicable to the respective command.
checksum - the checksum is the sum of all the values (excluding the
start character) modulo 216. Note that the checksum is a 16-bit number which wraps around through zero should the sum exceed 65535 i.e. if the sum of the data from the address through to data is 65537 then the checksum should be sent as 1.
All values are 16-bit (unsigned integers - 0 to 65535) except for the address and commands which range from 0 to 255. Upon receipt of any command between 1 and 2 (i.e. checksum matches and command is recognized) the module will reply with a copy of the original command with the command value increased by 128 (i.e. the most significant bit is set); data is the requested data.

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