Decentralized actuation on the factory floor is directly managed by the Beckhoff IP2020-B730, an integrated Modbus RTU/ASCII fieldbus module carrying 8 digital output channels. This ruggedized fieldbus device enables direct wiring of actuators outside of traditional electrical enclosures, communicating seamlessly over serial RS485 lines. Featuring a robust polyamide housing and IP67-rated construction, the module simplifies field-level wiring through standard industrial connectors while maintaining high electrical isolation between control logic and fieldbus components.
| Parameter | Specification |
|---|---|
| Manufacturer | Beckhoff |
| Model Number | IP2020-B730 |
| Fieldbus Protocol | Modbus RTU / Modbus ASCII |
| Physical Layer / Medium | RS485 (Screened, twisted copper cable 2 x 0.25 mm²) |
| Data Transfer Rates | 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400 baud |
| Number of Outputs | 8 digital outputs |
| Output Type / Connection | 8 mm, snap-on type socket |
| Nominal Output Voltage | 24 V DC (-15% / +20%) |
| Max. Output Current | 2 A per channel (short-circuit proof), 4 A total sum limit |
| Bus Interface Connection | 1 x M12 socket, 5-pin, B-coded |
| Power Supply Port (Feed) | 1 x M8 male connector, 4-pin |
| Power Supply Port (Downstream) | 1 x M8 female connector, 4-pin |
| Electrical Isolation | Control voltage to fieldbus: Yes |
| Operating Temperature | 0 to +55 degC |
| Storage Temperature | -25 to +85 degC |
| Ingress Protection Rating | IP65 / IP66 / IP67 (conforms to EN 60529) |
| Housing Material | PA6 (Polyamide) |
| Dimensions (W x H x D) | 30 mm x 175 mm x 26.5 mm |
| Unit Weight | 210 g |
| Interface Type | Connector Pinout | Assignment / Function |
|---|---|---|
| M8 Power Feed (Male) | Pin 1 | Feed Control Voltage Us (+24 V DC) |
| Pin 2 | Feed Load Voltage Up (+24 V DC) | |
| Pin 3 | GNDs (Control Voltage Ground) | |
| Pin 4 | GNDp (Load Voltage Ground) | |
| M12 Bus Interface (B-coded) | Pin 2 | TxD/RxD-N (A-line, RS485) |
| Pin 4 | TxD/RxD-P (B-line, RS485) | |
| Pin 5 | Shield / Ground |
The IP2020-B730 belongs to the legacy serial Fieldbus Box family. For newer EtherCAT topologies, migrate toward the Beckhoff EP series modules. Ensure your host PLC contains the appropriate Modbus RTU serial communication master card or gateway device supporting baud speeds matching this module's DIP switch settings.
While individual channels support up to 2 A, the total sum limit across all 8 outputs must not exceed 4 A. If multiple inductive or high-current loads are triggered simultaneously, ensure that external power budgeting is calculated to prevent internal thermal overload. Highly cyclic inductive loads require external suppression snubber networks to prolong the internal switching contact life expectancy.
Avoid using non-shielded RS485 lines over long runs. Always verify that a 120-Ohm termination resistor is present on the physical end-of-line RS485 node to protect Modbus data packets from line reflection errors. Device node addressing can be quickly adjusted using the two rotary switches beneath the protective IP67 seal cover.
CRITICAL WARNING:
De-energize all power lines feeding the module before commencing installation. Failure to disconnect the 24 V DC control (Us) and load (Up) supply lines can lead to equipment short-circuits, interface damage, or electrical hazards for field operators.
Mount the physical module to the machine bed or bracket using two M3 screws through the 3.5 mm diameter mounting holes.
Set the physical Modbus station node address utilizing the manual rotary selectors under the protective housing screw-cap.
Connect the B-coded M12 bus cabling, securing the locking sleeve to ensure proper IP67 environmental sealing.
Attach the M8 power cables, then engage the 24 V DC power sources to commission the bus communications.
Global Express Shipping
Returns & Warranty
Manufacturer: BECKHOFF
Product No.: IP2020-B730
Country of origin:Germany
Product Type: Fieldbus Box Modules
Payment: T/T, Western Union
Weight: 1000g
Dimensions: 30 mm x 175 mm x 26.5 mm
Shipping port: Xiamen
Warranty: 12 months
Decentralized actuation on the factory floor is directly managed by the Beckhoff IP2020-B730, an integrated Modbus RTU/ASCII fieldbus module carrying 8 digital output channels. This ruggedized fieldbus device enables direct wiring of actuators outside of traditional electrical enclosures, communicating seamlessly over serial RS485 lines. Featuring a robust polyamide housing and IP67-rated construction, the module simplifies field-level wiring through standard industrial connectors while maintaining high electrical isolation between control logic and fieldbus components.
| Parameter | Specification |
|---|---|
| Manufacturer | Beckhoff |
| Model Number | IP2020-B730 |
| Fieldbus Protocol | Modbus RTU / Modbus ASCII |
| Physical Layer / Medium | RS485 (Screened, twisted copper cable 2 x 0.25 mm²) |
| Data Transfer Rates | 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400 baud |
| Number of Outputs | 8 digital outputs |
| Output Type / Connection | 8 mm, snap-on type socket |
| Nominal Output Voltage | 24 V DC (-15% / +20%) |
| Max. Output Current | 2 A per channel (short-circuit proof), 4 A total sum limit |
| Bus Interface Connection | 1 x M12 socket, 5-pin, B-coded |
| Power Supply Port (Feed) | 1 x M8 male connector, 4-pin |
| Power Supply Port (Downstream) | 1 x M8 female connector, 4-pin |
| Electrical Isolation | Control voltage to fieldbus: Yes |
| Operating Temperature | 0 to +55 degC |
| Storage Temperature | -25 to +85 degC |
| Ingress Protection Rating | IP65 / IP66 / IP67 (conforms to EN 60529) |
| Housing Material | PA6 (Polyamide) |
| Dimensions (W x H x D) | 30 mm x 175 mm x 26.5 mm |
| Unit Weight | 210 g |
| Interface Type | Connector Pinout | Assignment / Function |
|---|---|---|
| M8 Power Feed (Male) | Pin 1 | Feed Control Voltage Us (+24 V DC) |
| Pin 2 | Feed Load Voltage Up (+24 V DC) | |
| Pin 3 | GNDs (Control Voltage Ground) | |
| Pin 4 | GNDp (Load Voltage Ground) | |
| M12 Bus Interface (B-coded) | Pin 2 | TxD/RxD-N (A-line, RS485) |
| Pin 4 | TxD/RxD-P (B-line, RS485) | |
| Pin 5 | Shield / Ground |
The IP2020-B730 belongs to the legacy serial Fieldbus Box family. For newer EtherCAT topologies, migrate toward the Beckhoff EP series modules. Ensure your host PLC contains the appropriate Modbus RTU serial communication master card or gateway device supporting baud speeds matching this module's DIP switch settings.
While individual channels support up to 2 A, the total sum limit across all 8 outputs must not exceed 4 A. If multiple inductive or high-current loads are triggered simultaneously, ensure that external power budgeting is calculated to prevent internal thermal overload. Highly cyclic inductive loads require external suppression snubber networks to prolong the internal switching contact life expectancy.
Avoid using non-shielded RS485 lines over long runs. Always verify that a 120-Ohm termination resistor is present on the physical end-of-line RS485 node to protect Modbus data packets from line reflection errors. Device node addressing can be quickly adjusted using the two rotary switches beneath the protective IP67 seal cover.
CRITICAL WARNING:
De-energize all power lines feeding the module before commencing installation. Failure to disconnect the 24 V DC control (Us) and load (Up) supply lines can lead to equipment short-circuits, interface damage, or electrical hazards for field operators.
Mount the physical module to the machine bed or bracket using two M3 screws through the 3.5 mm diameter mounting holes.
Set the physical Modbus station node address utilizing the manual rotary selectors under the protective housing screw-cap.
Connect the B-coded M12 bus cabling, securing the locking sleeve to ensure proper IP67 environmental sealing.
Attach the M8 power cables, then engage the 24 V DC power sources to commission the bus communications.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
Integrate Allen-Bradley CompactLogix, Caterpillar ATS, and generators into DeltaV DCS over Modbus RTU. Covers ProSoft MVI69-MCM, Miille DIN266 gateways.
ONS instruction fires but the OTE coil never latches in Studio 5000 because the one-shot is only true for one scan. Use OTL/OTU or seal-in logic instead.
Configure Allen-Bradley Kinetix 5500 servo drives on EtherNet/IP. Covers CIP Sync, IEEE 1588 V2 timing, Stratix selection, DLR topology, and HMI.
A moving-average filter is the sliding-window smoother most instrument engineers drop into DCS and PLC analog paths. Here is how the window works, how N and sample time set lag, and when a...
On Frame 5–9 gas turbines, GE Mark VI and Mark VIe run control as function-block application software. This article maps process, protection, and sequencing functions—and what Toolbox ST access...
