B&R 4P0420.00-490
Power Panel PP21 LCD display 4x 20 characters, backlight, 34 function keys, compatible with 2003 CPU, 700 kB SRAM, 1.4 MB FlashPROM, 1 PCMCIA slot, 1 RS232 interface, 1 CAN interface: electrically isolated, network-capable, 6 slots for screw-in modules, 10 digital inputs 24 VDC, 8 digital outputs 24 VDC, 0.4 A, IP65 protection (front), 155 x 190 mm (W x H), 24 VDC. Order TB712 terminal blocks separately!
Lifecycle & replacement
Lifecycle status not indexed
No manufacturer-published lifecycle data for B&R part numbers is indexed here yet. Ask IAC to check availability and an upgrade path.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Technical specifications
General information
| Battery / Type | Renata 950 mAh |
| Battery / Variant | Lithium ion |
| Certifications / CE | Yes |
| Certifications / UL | cULus E115267
Industrial control equipment |
Controller
| Real-time clock / Accuracy | Resolution 1 s |
| Standard memory / System PROM | 600 kB FlashPROM |
| Standard memory / User PROM | 1.4 MB FlashPROM |
| Standard memory / User RAM | 700 kB SRAM |
| Voltage monitoring | The internal power supply is monitored for overvoltage and undervoltage. |
| Typical instruction cycle time | 0.5 µs (average value with 70% bit processing and 30% analog processing) |
| Additional I/O processor | Takes over operation of the I/O data points |
Display
| Backlight / Type | LED |
| Type | Monochrome LCD |
| Resolution | 4 x 20 characters |
Interfaces
| Interface IF1 / Type | RS232 |
| Interface IF1 / Variant | 9-pin male DSUB connector |
| Interface IF1 / Electrical isolation | No |
| Interface IF1 / Max. baud rate | 115.2 kbit/s |
| Interface IF2 / Type | CAN |
| Interface IF2 / Variant | 9-pin male DSUB connector |
| Interface IF2 / Electrical isolation | Yes |
| Interface IF2 / Max. transfer rate | 500 kbit/s |
Digital inputs
| Electrical isolation / Group isolation | Input group - Output group |
| Electrical isolation / Channel - Bus | Yes |
| Electrical isolation / Channel - Channel | No |
| Quantity | 10 |
| Nominal voltage | 24 VDC |
| Input circuit | Sink |
| Input filter | <1 ms |
| Additional functions | 4x TPU |
| Input current at nominal voltage | Approx. 4 mA |
Digital outputs
| Electrical isolation / Group isolation | Input group - Output group |
| Electrical isolation / Channel - Bus | Yes |
| Electrical isolation / Channel - Channel | No |
| Quantity | 8 + 1 dry relay contacts |
| Nominal voltage | 24 VDC |
| Nominal output current | 0.4 A |
| Total nominal current | 3.2 A |
| Output circuit | Source |
| Output protection | Overload protection |
| Internal protective circuit | Yes |
Keys
| Function keys | 10 with LED (yellow) |
| Soft keys | 12 with LED (yellow) |
| Number block | 12 |
Power supply unit
| Nominal voltage | 24 VDC |
| Power consumption | Max. 20 W |
| Output power for screw-in modules and PC card interface | 10 W |
Peripherals
| PC card slot / Memory size / FlashPROM | Max. 4 MB |
| PC card slot / Memory size / SRAM | Max. 4 MB |
| PC card slot / Quantity | 1 |
| Slots / For B&R 2003 screw-in modules | 6 |
| Slots / For CAN bus communication | 1 |
| Slots / For TPU | 3 |
| Slots / For serial asynchronous communication | 3 |
| System bus for expansions | No |
Operating conditions
| Degree of protection per EN 60529 | IP65 (front) |
Ambient conditions
| Temperature / Operation | 0 to 50°C |
| Temperature / Storage | -20 to 60°C |
| Relative humidity / Operation | 10 to 90% |
| Relative humidity / Storage | 5 to 95% |
Mechanical properties
| Dimensions / Width | 155 mm |
| Dimensions / Height | 190 mm |
| Dimensions / Depth | 84.4 mm |
| Weight | 1.25 kg |
Documentation & CAD
Files hosted by B&R Industrial Automation; links open the official download page.
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs B&R parts — new, refurbished, or exchange units with warranty.
Specifications from the official B&R product catalog. Always confirm against the datasheet for your exact revision.