PLX31_MBTCP_MBS4

Modbus TCP/IP to Modbus Master/Slave Gateway - 4 Port

PLX31-MBTCP-MBS4

ProSoft Technology’s Modbus® TCP/IP to Modbus® Serial four-port Serial gateway allows high-speed bi-directional data transfers between Modbus® TCP/IP-enabled PACs and Modbus® Serial devices. Modbus® Serial devices are widely used in nearly every industry and include SCADA systems and Power Monitors. Four Serial ports allow for connectivity of up to 400 Modbus® Serial devices, reducing the amount of gateways required for your application.

In addition, the gateway includes several features that allow for simplified integration, reduced commissioning time and optimized performance.

A conformal coating option is available for this product.

Architectures

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Features and Benefits

  • Gateway includes a SD card slot (SD card optional) for storing configuration files. This can be used for disaster recovery. 
  • Four Serial ports allow for connectivity of up to 400 Modbus® Serial devices, reducing the amount of gateways required for your application. 
  • Supports up to 20 simultaneous client & server connections, allowing for faster communication between devices such as HMIs, SCADA systems, power monitors and flow computers, among others. 
  • ProSoft Discovery Service: This utility allows your PC to see the gateway and change its default IP address without being on the same subnet as the module. 
  • Secure module configuration via module switch (v1.04 and greater). 
  • Up to 10,000 16-bit registers can be used to exchange large amounts of data.

Specifications

Modbus® TCP/IP Specifications

Specification

Description

 

Supported Modbus Function Codes

1: Read Coil Status
2: Read Input Status
3: Read Holding Registers
4: Read Input Registers
5: Force (Write) Single Coil 
6: Preset (Write) Single Holding Register

15: Force (Write) Multiple Coils
16: Preset (Write) Multiple Holding Registers
22: Mask Write Holding Register (Slave Only)
23: Read/Write Holding Registers (Slave Only)

Supported Clients

10

 

Supported Servers

MBAP: 5
Encapsulated: 5

 

Command List

Up to 160 fully configurable Client commands

Status Data

Error codes reported individually for each command

Command List Polling

Each command can be individually enabled or disabled;
write-only-on-data-change is available

Modbus Serial Specifications

Specification

Description

 

Command List

Up to 100 commands per Master port, each fully configurable for Function Code, slave address, register to/from addressing and word/bit count.

Supported Modbus Function Codes

1: Read Coil Status
2: Read Input Status
3: Read Holding Registers
4: Read Input Registers
5: Force (Write) Single Coil
6: Preset (Write) Single
Holding Register

15: Force (Write) Multiple Coils
16: Preset (Write) Multiple Holding Registers
22: Mask Write Holding Register (Slave Only)
23: Read/Write Holding Registers (Slave Only)

Software configurable communication parameters

Baud rate: 110 baud to 115.2 kbps 
Parity: None, Even, Odd
Data Size: 7 or 8 bits
Stop bits: 1 or 2
RTS on/off delay: 0 to 65535 milliseconds
Modbus RTU mode (binary) with CRC-16
Modbus ASCII mode with LRC error checking
Floating Point Data Floating point data movement supported, including configurable support for Enron and Daniel implementations

Polling of Command List

Configurable polling of command list, including continuous and on change of data, and dynamically user or automatic enabled.

Status Data

Error codes available on an individual command basis. In addition, a slave status list is maintained

Node Address

1 to 247 (software selectable)

RS Interface

RS232, RS422, and RS485

 

Transmit and Receive Buffer Size

255 byte Transmit character length with 0 to 65535 millisecond delay between each transmitted character

Hardware

Specification

Description

Power Supply

24 VDC nominal
10 to 36 VDC allowed
Positive, Negative, GND Terminals

Current Load

24 VDC nominal @ 300 mA
10 to 36 VDC @ 610 mA maximum

Operating Temperature

-25°C to 70°C (-13°F to 158°F)

Storage Temperature

-40°C to 80°C (-40°F to 176°F)

Shock

IEC 60068-2-27; 15G @ 11ms, 3-Axis (Operational)
IEC 60068-2-27; 30G @ 18ms, 3-Axis (Non-Operational)

Vibration

IEC 60068-2-6; 5G @ 10 to 150 Hz

Relative Humidity

5% to 95% RH with no condensation

Dimensions (H x W x D)

5.38 x 1.99 x 4.38 in
13.67 x 5.05 x 11.13 cm

LED Indicators

Configuration (CFG), Error (ERR), Power (PWR), Hardware Fault (FLT), Network Status (NS), EtherNet/IP™ Class I or Class III Connection Status (EtherNet/IP Only) Module Status (MS), Module Configuration Status (EtherNet/IP Only) Ethernet Communication Port Link/Activity, and 100 mbit Serial Communication Port Receive (RX) and Transmit (TX)

Ethernet Port

10/100Mbit half-duplex RJ45 Connector Electrical Isolation 1500 Vrms at 50 to 60 Hz for 60 seconds, applied as specified in section 5.3.2 of IEC 60950: 1991 Ethernet Broadcast Storm Resiliency is less than or equal to 5000 [ARP] frames-per-second and less than or equal to 5 minutes duration

Number of Serial Ports

4

Serial Port Isolation

2500 Vrms port signal isolation per UL 1577 serial port communication signal uses RF (Radio Frequency) modulation signal as isolation media, IC chip model is SiliconLabs Si844x (Si8440,Si8441,Si8442)

Shipped With Each Unit

2.5 mm screwdriver
J180 Power Connector
(4) RJ45-DB9M Serial Adapter Cable (serial protocol)
(4) DB9 to Screw Terminal Adapter (serial protocol)

Certifications

ATEX Letter of Conformity 107.32 kB Last Modified 05/12/2022
CB Safety 348.30 kB Last Modified 10/20/2022
UL Certificate of Compliance 233.35 kB Last Modified 11/16/2022
Declaration of Conformity (RoHS/CE) 114.24 kB Last Modified 06/01/2022
Korean KC Registration 974.32 kB Last Modified 07/07/2020
Country Approval - Eurasian Customs Union Conformity (EAC) (Wired) 1.92 MB Last Modified 07/10/2020
Declaration of REACH Compliance 145.49 kB Last Modified 06/01/2022