Item no. 750-652
RS-232/485 Serial Interface
Item no. 750-652

750/753 Series I/O-System RS-232/485 Serial Interface

Item no. 750-652
RS-232/485 Serial Interface


The serial interface module connects RS‐485/422 or RS-232 C interface devices to the WAGO-I/O-SYSTEM 750. It also provides gateways between the serial interface and the fieldbus systems supported by the WAGO-I/O SYSTEM 750. No higher protocol level is required by the module. Communication to the associated fieldbus master is completely transparent. This provides for a broader application scope for the serial interface module. If required, communication protocols can be configured via fieldbus master.

The 2560 byte input buffer provides for high data baud rates. At lower baud rates, the data received in lower priority tasks is evaluated without data loss.

The 512 byte output buffer provides fast transmission of larger data strings.

The module can be configured via WAGO-I/O-CHECK or GSD files. Flexible baud rate and data width selection provides perfect adaptation to the respective application.

Compatibility with couplers/controllers:

See manual, Section 3 "Device Description"

Product details


Technical Data

Type of signal RS-232
Baud rate 300 Baud … 115.2 kBd
Bit transfer RS-485/-422: ISO 8482 / DIN 66259 - 4; RS-232: EIA/TIA-232-F
Transmission channels 1 TxD / 1 RxD, full duplex, half duplex 7 or 8 bit data, 1 or 2 stop bit
Line length RS-485/-422: max. approx. 1000 m twisted pair, RS-232: max. 40 m
Bit width 1 x 46/1 x 22/1 x 6-byte input/output (parametrizable), 2-byte control/status
Parity None/Even/Odd
Number of data bits 7/8, einstellbar
Stop bits 1/2
Buffer 2560 bytes in / 512 bytes out
System supply voltage DC 5 V; via data contacts
Current consumption, system supply 85 mA
Field supply voltage DC 24 V; über Leistungskontakte; zur Weiterleitung getunnelt
Isolation 500 V system/supply
Number of incoming power jumper contacts 2
Number of outgoing power jumper contacts 2
Current carrying capacity of the power jumper contacts 10 A

Connection data

Connection technology: inputs/outputs 8 x CAGE CLAMP®
Connection type (1) Inputs/Outputs
Solid conductor 0.08 … 2.5 mm² / 28 … 14 AWG
Fine-stranded conductor 0.08 … 2.5 mm² / 28 … 14 AWG
Strip length 8 … 9 mm / 0.31 … 0.35 Inch

Geometrical Data

Width 12 mm / 0.472 in
Height 67.8 mm / 2.669 in
Height from upper-edge of DIN-35 rail 60.6 mm / 2.386 in
Depth 100 mm / 3.937 in

Mechanical data

Type of mounting DIN-35 rail

Material Data

Color lichtgrau
Housing material Polycarbonate, polyamide 6.6
Weight 50.264 g
Conformity marking CE

Environmental Requirements

Surrounding air (operating) temperature 0 … 55 °C
Surrounding air (storage) temperature -40 … 85 °C
Degree of protection IP20
Degree of pollution (5) 2 per IEC 61131-2
Operating altitude 0 … 2000 m
Mounting position horizontal (standing/lying) or vertical
Relative air humidity (no condensation) 95 %
Vibration resistance 4g per IEC 60068-2-6
Shock resistance 15g per IEC 60068-2-27
EMC immunity to interference acc. to EN 61131-2, marine applications
EMC emission of interference acc. to EN 61131-2, marine applications
Exposure to pollutants Per IEC 60068-2-42 and IEC 60068-2-43
Permissible H2S contaminant concentration at a relative humidity < 75 % 10 ppm
Permissible SO2 contaminant concentration at a relative humidity < 75 % 25 ppm

Commercial data

Packaging type BOX
Country of rigin DE
GTIN 4050821002949
Customs Tariff No. 85389099990
Product Group 15 (Remote I/O)

Approvals / Certificates


Certificate name
Approval: ATEX
TUEV Nord Cert GmbH
Certificate name: TÜV 07 ATEX 554086 X en.
Approval: TUEV Nord
TUEV Nord Cert GmbH
Certificate name: IECEx TUN 09.0001 X
Approval: UL
Underwriters Laboratories Inc.
Certificate name: E198726 Sec.1

Ship Approvals

Certificate name
Approval: ABS
American Bureau of Shipping
Certificate name: 16-HG1554285-PDA
Approval: BV
Bureau Veritas S.A.
Certificate name: 30389/A1 BV
Approval: DNV
DNV Germany GmbH
Certificate name: A-14093
Approval: GL
Germanischer Lloyd
Certificate name: 11 631 - 10 HH
Approval: LR
{Lloyd’s Register EMEA
Certificate name: 02/20026 (E5)
Approval: NK
Nippon Kaiji Kyokai
Certificate name: TA17255M
Approval: PRS
Polski Rejetr Statkow
Certificate name: TE/1989/880590/13
Approval: RINA
RINA Germany GmbH
Certificate name: ELE134212XG


Certificate name
Approval: UL
UL International Netherlands B.V.
Certificate name: E175199 Sec.1




Serial Interface RS-232 / RS-485
Apr 11, 2017
PDF 3.8 MB
Design Notes Randbedingungen und Empfehlungen zur Erhöhung der Betriebssicherheit
May 3, 2011
PDF 1.5 MB
Use in Hazardous Environments Begriffsdefinition, Kennzeichnung und Errichtungsbestimmungen
May 8, 2014
PDF 1.0 MB

Bid Text

750-652 IO-Klemmen
Nov 3, 2017
DOC 28.2 kB

System Description

750/753 Series I/O-System ‒ General Product Information
May 29, 2018
PDF 2.0 MB
Overview on WAGO-I/O-SYSTEM 750 approvals
Jun 6, 2017
PDF 314.9 kB



Libraries for Building Automation CODESYS 2.3 This Zip-File contains WAGO I/O PRO libraries for Building Automation The following applications are supported: - DALI - DALI Sensors - DALI Colour Control - DALI Emergency Lighting - Enocean - SMI - HVAC Functions - Blind control, Dimmer, Latching Relay ... - Scheduler - KNX Functionblocks - BACnet - WINSTA Blind Control - DMX - Weather Station Elsner - M-Bus, MBus - MP-Bus, MPBus - Romutec - Thermokon WRF06 - Thermokon WRF08 - 3-Phase Power Measurement 750-493 - LON - Grundfos GENIbus Interface
Jul 6, 2018
ZIP 66.1 MB


CAD data

3D Download 750-652

Device Files

Device Driver

WAGO USB Service Cable Driver / 750 and 857 Series, Sep 10, 2014
ZIP 4.8 MB

Compatible products

Carrier rail

Marking accessories

shield connection

Product family

750/753 Series I/O-System

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