RS232 naar RS422/RS485 of 20mA Auto Drive Enable omvormer, KD485-ADE
De KD485-ADE is vergelijkbaar met de KD485-STD maar voegt een microprocessor (met twee seriële poorten) toe dat data buffering biedt en de omzetting van baudrate enz. vergemakkelijkt. De KD485-ADE is een zeer veelzijdige convertor die is bedoeld voor de RS232 naar RS485-conversie, maar werkt even goed voor RS232 naar RS422, half duplex en full-duplex. De KD485-ADE-4XX-4XX is vergelijkbaar met de KD485-STD-422-422, maar hij kan ook worden gebruikt voor het aansluiten van 2-draads RS485 slaves op een 4-draads RS485-bus, of omgekeerd. Kan ook worden gebruikt als 2-draads RS485 repeater wanneer kleine tijdvertragingen in acht worden genomen.
Versies:
RS232 <> RS422 / RS485-omzetter
RS232 <> 20 mA geïsoleerde omzetter
RS232 <> RS232 poortisolator
RS422 <> RS422-poortisolator
Product varianten
| Artikelnummer | Productnaam | |
|---|---|---|
| 1111-08-0104-232-00 + | KD485-ADE | + Vraag offerte aan |
| RS232<>RS422/485 ADE industrial isolated converter, DIN-rail mounting | ||
| 1111-08-0104-232-03 + | KD485-ADE-232-20mA | + Vraag offerte aan |
| RS232<>20mA ADE isolated coverter, DIN-rail mounting | ||
| 1111-08-0104-232-02 + | KD485-ADE-232-232 | + Vraag offerte aan |
| RS232<>RS232 ADE port isolator, Rx/Tx/GND isolated coverter, DIN-rail mounting | ||
| 1111-08-0104-422-01 + | KD485-ADE-422-422 | + Vraag offerte aan |
| RS422<>RS422 ADE port isolator, Rx/Tx/GND isolated coverter, DIN-rail mounting | ||
Beschrijving
The KD485-ADE is similar to the KD485-STD but inserts a microprocessor (with two serial ports) into the data path which provides data buffering and facilitates baud rate etc conversion. The KD485-ADE is a highly versatile converter which is intended for RS232 to RS485 conversion but works equally well for RS232 to RS422, half duplex and full duplex. Several standard application programs ("Modes") are provided in a built-in ROM:
- Mode 0: emulates KD485-STD but also provides baud rate and character format conversion, with data buffering and precise edge timing regeneration.
- Mode 1: as above, plus Auto Driver Enable (ADE). The Port 2 RS485 driver is automatically controlled according to Port 1 receive data.
- Mode 2: RS485 Addressable Adapter. This makes possible to connect non-addressable RS232 devices to a 2/4-wire RS485 bus, through which they can be polled by a single Master. Devices which emit data continuously are also supported by the KD485's queues. The RS485 address and an optional lead-in byte are fully configurable.
The KD485-ADE is configured using a "dumb" terminal or a PC (via Port 1, RS232) using the supplied GUI-based KDCFG Windows configuration program.
- Two serial ports (port 1 is RS232 and port 2 is RS422 or RS485)
- 7-35V DC powered
- Three-way isolated (Port 1, Port 2 and power input are mutually isolated)
- Automatic Driver Enable on RS485
- Data flow indicator LEDs
- 30-115200 baud, low-emission drivers
- High quality removable screw terminals
- Replacement for Eurotherm D421
The KD485-ADE-232-232 is similar to the KD485-STD-232-232 but inserts a microprocessor (with two serial ports) into the data path which provides data buffering and facilitates baud rate etc conversion.
The KD485-ADE-232-232 is configured using a "dumb" terminal or a PC (via Port 1, RS232) using the supplied GUI-based KDCFG Windows configuration program.
- Two serial ports (port 1 and port 2 are both RS232)
- 7-35V DC powered
- Three-way isolated (Port 1, Port 2 and power input are mutually isolated)
- Data flow indicator LEDs
- 30-115200 baud, low-emission drivers
- High quality removable screw terminals
Specificaties
- Ports:
- 2 Asynchronous ports, Tx and Rx signals only. XON/XOFF selectable
- Port parameters:
-
- RS422/RS485: 0-115200 baud, all character formats
- 20mA: 30-19200 baud
- Interface options:
-
- Standard product: port 1 is RS232; port 2 is RS422/485
- Any combination of RS232, RS422/485 or 20mA loop can be supplied
- RS232:
- Receiver threshold +1.5V typ. Receiver Rin 5kΩ typ. TX o/p ±8V typ (3k load)
- RS422/485:
- Receiver threshold 200mV typ (differential). Receiver Rin 12kΩ min. TX o/p 0 to +5V (no DC load); +2 to +3V (120Ω ohm load)
- 20mA loop:
- Input: LED, nominal drop 2V Output: o/coll. transistor, Vce(sat) < 2V 20mA current source: accuracy ±20%; no-load voltage approximately equal to KD485 supply voltage + 4V
- Power supply:
- 7 - 35VDC (7-26VDC 20mA version)
- Isolation:
- 64V PK, tested at >1000V AC RMS, 1 second
- Environmental:
- Operating temperature 0 to +50°C. Storage temperature -25C to +70C. Relative humidity (operating and storage) 0 to 90%, non-condensing
- Ventilation:
- Rail-mounted KD485 must have a 50mm gap above and below
- EMC complianc:
- Emissions EN50081-2 (94), immunity EN50082-2 (95)
- Dimensions:
- 29mm (W) x 113mm (H) x 100mm (L) approx. in rail-mounted position, including screw terminals