# MODBUS Communication Adapter, FX3U, 1 Channel, RS-485, 74 mm x 17.6 mm x 90 mm, MELSEC-F Series
**URL**: https://novapart.co/products/FX3U-485ADP-MB/modbus-communication-adapter-fx3u-1-channel-rs-485
**SKU**: FX3U-485ADP-MB
**Manufacturer**: MITSUBISHI
**Category**: Automation & Process Control || Process Controllers, Programmers & Indicators || Controllers || Controller Accessories
**Price**: β¬203.5800
**Stock**: 10+
**Lead Time**: 50 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (15-Jan-2018) |
| Product Range | MELSEC FX3U |
| Current Rating | 20mA |
## Datasheet
π [Download PDF](https://novapart.co/datasheet/farnell:3479340/)
## FX3U-232ADP-MB FX3U-485ADP-MB
# Explore the Possibilities! rN th ~ Le **FX Modbus**
New
## **Modbus Serial Communication Adapter**
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Enabling the FX3U PLC to be a Master or N:N Networking Computer Link
Station1 Station2
Slave on to your Modbus network! RS-485 RS-485 RS-485
Also supports all previous serial FX-485PC-IF
communication functions including
FX3U-485-ADP-MB FX3U-485-ADP-MB
N:N Networking, Computer Link, Inverter
communication, RS and RS2 instructions, etc. Inverter communication FX3U-485-ADP-MB RS and RS2 instructions
Inverter Bar-code reader
Inverter
*For detailed information on all other supported
serial communication functions, refer to the FX Series
βgh LU: Userβs Manual - Data Communication Edition ge ae oe a Printer FX3U-485-ADP-MB
Oe Modbus Specifications - β
System Configuration Communication Specifications
Item Specifications
Communicationadapter Special adapterconnection board Communication Adapter Communication BoardExpansion/ PLC Channels per PLC FX3U-232ADP-MB1 ChannelFX3U-485ADP-MB
FX3U-CNV-BD Communication Interface RS-232C RS-485
FX3U-485ADP-MB FX3U-485-BD FX3U Transmission Speed 300, 600, 1200, 2400, 4800, 9600, or 19200 bps
+ + + FX3U-232-BD V2.40 or Transmission Data Length 7-bit or 8-bit
FX3U-232ADP-NB FX3U-422-BD Higher Specifications Stop Bit 1-bit or 2-bit
FX3U-USB-BD Transmission Distance Up to 15m (49β2") Up to 500m (1640β5")
Communication Protocol RTU or ASCII
Number of Slaves 1 Slave 16 Slaves
In the case of RS-232C In the case of RS-485 Number of Functions 14 (+14 Diagnostic functions)
Jp == 15m (49β 2") - \- [$l!] 500m (1640 β 5 " ) MasterFunction Number of Simultaneously Executable InstructionsMaximum Write Data 123 words or 1968 coils1 Instruction
FX PLC FX PLC FX PLC FX PLC FX PLC Maximum Read Data 125 words or 2000 coils
Master station Slave station Master station Slave station Slave station
No. 1 (01H) No. 1 (01H) No. 16 (10H) Number of Functions 14 (+14 Diagnostic functions)
Number of Simultaneous
units17 SlaveFunction Acceptable Request 1 Request Message
Messages
Station Number 1 to 247
Special External Dimensions 90 (H) x 17.6 (W) x 74 (D) [mm]
[eect a ee | Adapter Weight 80g
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Note: Modbus Slave Nodes do not need to be numbered in any specific order
## _**Modbus Communication Setup**_
Modbus serial communication parameters and communication execution are setup easily within the ladder program using GX Developer.
The FX3U Modbus Master uses a new dedicated command, ADPRW, to communicate with Modbus Slaves on the network.
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*Master Function requires GX Developer Version 8.45X or Higher
Command Slave Command Code
input Node Command Parameters
(normally ON) Address Code
FNC276 S β’ S1 β’ S2 β’ S3 β’ S4 β’ / D β’
ADPRW
=
Command Parameters
depending on the
Command Code
= = Command Code
Slave Node Address
00H to 10H (0 to 16)
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Command List
Read Coils Return Bus Communication Error Count
Read Discrete Inputs Return Bus Exception Error Count
Read Holding Registers Return Slave Message Count
Read Input Registers Return Slave No Response Count
Write Single Coil Return Slave NAK Count
Write Single Register Return Slave Busy Count
Read Exception Status Return Bus Character Overrun Count
Return Query Data Get Comm. Event Counter
Restart Communication Option Get Comm. Event Log
Return Diagnostic Register Write Multiple Coils
Change ASCII Input Delimiter Write Multiple Registers
Force Listen Only Mode Report Slave ID
Clear Counters and Diagnostic Register Mask Write Register
Return Bus Message Count Read/Write Multiple Registers
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## aa MITSUBISHI ELECTRIC CORPORATION
HEAD OFFICE: TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
New publication, effective Aug.2007 Specifications subject to change without notice.
HIME-L009A0708 Printed in Japan (MEE)
## Links
- [View this product on Novapart](https://novapart.co/products/FX3U-485ADP-MB/modbus-communication-adapter-fx3u-1-channel-rs-485)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/mitsubishi-electric/fx3u-485adp-mb/modbus-serial-comm-adapter-1ch/dp/3479340)
---
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