FN310 Field Wireless Multi-Protocol Module

Field Wireless Multi-Protocol Module with "Field Wireless Communication Module FN110" is connectable with a field wireless network as a field wireless device. This product acquires sensor data from a connected sensor and transmits it to a field wireless network through FN110. Refer to General Specifications of "Field Wireless Communication Module FN110" for an overview and detailed information.

  • Protocol conversion:
    This product can convert the wired communication protocol to the ISA100 Wireless protocol, and transmit it to the field wireless network. ISA100 Wireless is an international, industrial wireless networking standard engineered to serve the needs of process industries.
  • Multi-protocol support:
    HART or Modbus communication protocol can be selected. Various wired legacy device required by plant operation can be converted into a wireless device as required.
  • Installation flexibility:
    With built-in batteries, this product can supply power to the connected field device, eliminating the need for cables.Cable elimination allows installing a device at locations where it was previously either inaccessible or cost-prohibitive because of cable management and cost.
  • Small and lightweight housing with LCD:
    This product has a small and lightweight housing with a built-in LCD that displays the process data and communication status.

Protocol code: J:  Digital communication (HART 7 )
Protocol code: M: Digital communication (RS485 Modbus Protocol)

Power Supply Specifications Battery Dedicated battery pack
Rated voltage: 7.2 V
Rated capacity: 19 Ah
Battery Pack:
2x primary lithium-thionyl chloride batteries
With battery case (batteries sold separately)
Performance Specifications Update Period [Protocol code: J]
 5 to 3600 s selectable
[Protocol code: M]
 8 to 3600 s selectable
Battery Characteristics [Protocol code: J]
Battery pack with long life lithium-thionyl chloride batteries. At one-to-one connection, the typical battery life is 4 years when BootStrapTime*1*2 of the HART device is 10 seconds or 1 year when BootStrapTime*1*2 is 60 seconds, under the following conditions*3:
  • Ambient temperature: 23 ±2°C
  • Device role: IO mode
  • Update period: 10 minutes
  • LCD display: off
*1: BootStrapTime is defined as the time from the power-on of the HART device until the reliable data is available.
*2: For BootStrapTime, please contact the manufacturer of the connected HART device.
*3: Environmental condition such as vibration and the type of connected HART device may affect the battery life.
At 4-20 mA loop connection, the typical battery life is 8 years at 10 seconds update time or 5 years at 5 seconds update time in the following conditions.*1 :
  • Ambient temperature: 23 ±2°C
  • Device role: IO mode
  • LCD display: off
*1: Environmental condition such as viblratin may affect the battery life.
[Protocol code: M]
The typical battery life is 8 years under the flowing
conditions*1 :
  • Ambient temperature: 23 ±2°C
  • Device role: IO mode
  • Update period: 10 minutes
  • LCD display: off
*1:  Environmental condition such as vibration and the type of connected Modbus device may affect the battery life.
Functional Specifications Input:

[Protocol code: J]
This product has HART master function and enables setting primary and secondary. Communication specifications between this product and HART devices are below.
Protocol revision: HART 7*
Communication mode:   
   HART multidrop connection 4 mA fixed 
   HART point-to-point connection 4-20 mA
Number of HART devices: 1 device
Cable: Max 20 m (AWG14 to 22 with shield)
* The HART protocol ensures backward compatibility with the previous revisions.
[Protocol code: M]
Communication specifications between this product and Modbus devices are below.
Communication Mode: Half-duplex communication (RS-485 compliant) 
Protocol: Modbus RTU
Communication Speed: 9600 bps 
Number of Modbus devices: 1 device
Cable: Max 20 m (AWG14 to 22 with shield)

Power Supply Power supply to the FN110
Supply voltage: 3.5 V
Supply current: 50 mA
[Protocol code: J]
Power supply to the HART device* 1 * 2 *3
Maximum supply voltage:  18 V (steady-state)
Maximum supply current:  12 mA (steady-state)
*1: HART devices operate at 4 mA current-fixed mode.
*2:  Before using, make sure the minimum operating voltage of the HART device is 16.5V or less with 0 ohm load..
*3:  Supply power when using VOUT terminal.
[Protocol code: M]
Power supply to the Modbus device
Supply voltage: 3.5 V
Supply current: 10 mA
Installation Environment Ambient Temperature Limits Operating: -40 to 85°C (attitude up to 3000 m)
-30 to 80°C (LCD visible range)
Regulatory Compliance Statements CE Conformity
  • EMC: EN61326-1 Class A Table 2, EN55011 Class A
  • Safety: EN61010-1 (Indoor/Outdoor use)
Canadian Safety Standards CAN/CSA-C22.2 No.61010-1
CAN/CSA-C22.2 No.94.1, CAN/CSA-C22.2 No.94.2
IEC 60529
Degrees of Protection IP66, IP67 and Type 4X apply when the connector is properly tightened.
Explosion Protected Types FM (United States or Canada), ATEX, IECEx Intrinsically safe Approval
Physical Specifications Weight 500 g (without mounting bracket, clamp, and battery)

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