Product catalog
PRMP/1 – RS232-RS485 converter – Mains voltage
0,00 €
PRMP/1 is an industrial converter, from RS232 serial standard to RS485, powered by mains voltage 230 V supply.
It accepts the standard 230 V mains voltage, and it is completely Plug&Play, since it does not need any driver nor DIP switch. RS232 serial is Full Duplex, while RS485 is Half Duplex. The RS232-RS485 serial converter automatically detects data direction and transmission data rate up to 250 kbps, so it can be easily installed in any new or existing network.
Thanks to its compact 2-module DIN rail housing, it can be easily mounted in an electrical panel.
Description
PRMP/1 is an industrial converter, from RS232 serial standard to RS485, powered by mains voltage 230 V supply. It can be used to allow the communication of devices using two different serial standards, or to increase the transmission distance of a serial communication. Thanks to its compact 2-module DIN rail housing, it can be easily mounted in an electrical panel. It accepts the standard 230 V mains voltage, and it is completely Plug&Play, since it does not need any driver nor DIP switch. RS232 serial is Full Duplex, while RS485 is Half Duplex. The RS232-RS485 serial converter automatically detects data direction and transmission data rate up to 250 kbps, so it can be easily installed in any new or existing network.
Use cases
Serial converters are typically used to communicate with old devices and machinery using RS232, and integrate them in a RS485 low voltage network. RS232 serial standard is still common for industrial appliances, but it has limited transmission range and it is vulnerable to electromagnetical noise. Electromagnetical interferences (EMI) are fairly common in industrial environments, so it is good practice not to use RS232 for serial communication to guarantee signal integrity. In case of heavy electromagnetical interferences, a section of optical fiber is recommended. Furthermore, optical fiber guarantees perfect electrical isolation in case of voltage surges or lightnings.
Versatility
RS232-RS485 converters are available with 400 V or 560 V isolation, powered by AC and DC low voltage, or with DB9 RS232 connector. PRLP/1 converter for example comes with an isolated RS485 to protect against voltage surges. IMC/9R (isolated) and RMC/9R are smaller and ideal for direct connection to a device with a DB9 connector. Industrial serial converter PRM/1 is functionally identical to PRMP/1, but it is powered by AC and DC low voltage, like PRL/1, which in turn is isolated. Other combinations of serial standard, optical fiber, and power supply, are however available, while special requests (such as higher data rates) can be made via the contact form.
Technical Specifications
Main features
| Power supply | 230 V AC 48/62 Hz |
|---|---|
| Power consumption | 1 W |
| Serial transmission data rate | 0 – 250 kbps (automatic) |
| Propagation delay | 600 ns (typical) |
RS232
| Communication type | Full duplex |
|---|---|
| RX input voltage | 1.5 V low input threshold – 1.8 V high input threshold (± 25 V max) |
| TX output voltage | ± 5 V (± 5.4 V max) |
| ESD performance RX / TX | ± 15 kV (Human Body Model) – ± 8 kV IEC61000-4-2 contact discharge |
RS485
| Communication type | Half Duplex on a balanced line, with automatic data direction |
|---|---|
| Maximum bus voltage | ± 60 V – ESD ± 16.5 kV (Human Body Model) |
| Common mode range | ± 25 V DC |
| Slew rate | Limited, to have an error-free transmission |
Mechanical features
| DIN Rail | 2 modules |
|---|---|
| Dimensions | 90 mm x 36 mm x 57 mm |
| Weight | 83 g |
Working conditions
| Degree of protection | IP20 |
|---|---|
| Operating temperature | -20 °C to +50 °C |
| Storage temperature | -40 °C to +80 °C |
