Interface converter
TraxBus to EIA-RS232 / EIA-RS422 / EIA-RS485
TraxBus conversion to the following standard physical layers:
• EIA-RS232
• EIA-RS422
• EIA-RS485
The active version of TraxInterface3 can drive up to 300 remote peripherals.
The passive version can be used to interface standard peripherals (not equipped with TraxBus).
A complete galvanic isolation is provided between fieldbus and local interface.
| POWER SUPPLY TERMINALS | A |
|---|---|
| POWER SUPPLY FUSE 2,5A | B |
| ACTIVE TraxBus TERMINALS | C |
| D | EIA-RS422 / EIA-RS485 TERMINALS |
|---|---|
| E | EIA-RS232 SubD 9 FEMALE |
| F | PASSIVE TraxBus TERMINALS |
| ORDER CODE | DESCRIPTION | NOTE |
|---|---|---|
| 1300.10.02 |
TraxInterface3 232 A Interface converter TraxBus ACTIVE › EIA232 |
ACTIVE |
| 1300.10.03 |
TraxInterface3 422 A Interface converter TraxBus ACTIVE › EIA422 |
ACTIVE |
| 1300.10.04 |
TraxInterface3 485 A Interface converter TraxBus ACTIVE › EIA485 |
ORDER RELATED |
| 1300.20.02 |
TraxInterface3 232 P Interface converter TraxBus PASSIVE › EIA232 |
ORDER RELATED |
A single master controller is connected to SubD 9 female socket.
The cable coming from the (DTE–Data Terminal Equipment) master must be terminated with a SubD male socket (see below).
TraxInterface3 is DCE (Data Communication Equipment).
Only RxD, TxD and GND signal are required
| PASSIVE TRAXBUS – NEGATIVE 1 | 20 |
|---|---|
| PASSIVE TRAXBUS – POSITIVE 1 | 21 |
| EIA-RS422–A | 30 |
| EIA-RS422–B | 31 |
| GROUND | 32 |
| EIA-RS422–Z | EIA-RS485–B | 33 |
| EIA-RS422–Y | EIA-RS485–A | 34 |
1 AVAILABLE FOR PASSIVE VERSION ONLY
| 01 | POWER SUPPLY |
|---|---|
| 02 | POWER SUPPLY |
| 10 | ACTIVE TRAXBUS – NEGATIVE 2 |
| 11 | ACTIVE TRAXBUS – NEGATIVE 2 |
| 12 | ACTIVE TRAXBUS – POSITIVE 2 |
| 13 | ACTIVE TRAXBUS – POSITIVE 2 |
2 AVAILABLE FOR ACTIVE VERSION ONLY
Power Supply
- • Voltage24VAC / 30VDC ±10%
- • Frequency0 … 1000 Hz
- • Line fuse2,5A
- • Power consumption5 … 90VA
- • Power dissipation3 … 30W
- • Terminals2x2,5 mm2
Environment
- • Operating Temperature0 … +60°C
- • Storage Temperature-20 … +80°C MAX
- • Protection ClassIP20
- • Vibration0.5 G MAX
- • Relative Humidity30 … 90% 1
- • Mounting Position ANY
Passive TraxBus Interface
- • Bus Voltage≤ 30VDC
- • Baud Rate38400 MAX
- • Terminals2x2,5 mm2
- 1 NON CONDENSING
Active TraxBus Interface
- • TypeASYN MULTIDROP HALF DUPLEX
- • Peripherals300 MAX
- • Bus Voltage≤ 30VDC
- • Bus Current< 2,5A
- • Allowable Voltage Dropout< 3V
- • Allowable Line Capacitance< 100nF
- • Baud Rate38400 MAX
- • Terminals4x2,5 mm2
EIA-TIA RS232
- • Data formatSERIAL ASYN UART/NRZ
- • Device typeDCE
- • Isolation test voltage2500V @ 50Hz 1 min
- • Insulation voltage300V RMS
EIA-TIA RS422/485
- • Multidrop units8 MAX
- • Line Length1000 m MAX
- • Isolation test voltage2500V @ 50Hz 1 min
- • Insulation voltage300V RMS
- • Terminals4x2,5 mm2
EIA/RS232 TO TRAXBUS
Is the easiest way to implement TraxBus when the number of remote peripherals and the system architecture doesn't require more than 1 TraxBus line. A single master controller is connected to SubD 9 female socket: only RxD, TxD and GND are required.
EIA/RS485 TO TRAXBUS
EIA-RS485 interface can be used to drive one or more TraxBus lines. Communication line coming from the master must be wired at terminals 33 and 34, signal ground and shield to terminal 32, leaving terminals 30 and 31 unconnected. At higher baud rates and long distance could be necessary to install termination resistors (RT, typically 120 Ω) at both ends. Since TraxInterface3 is provided with high value fail safe resistors (10 kΩ), additional biasing could be required.
EIA/RS422 TO TRAXBUS
EIA-RS422 is a Full Duplex interface, TraxBus handles Half Duplex only, thus there is no practical reason to adopt such interface that requires additional wires.
TraxInterface3 can handle multiple receivers/transmitters in a multidrop configuration, following the same rules as EIA-RS485.
PASSIVE TRAXBUS TO EIA/RS232
Thirds party products can be connected to TraxBus by means of PASSIVE version of TraxInterface3. Depending on selected interface, the local peripheral can use EIA-RS232 (example below), EIA-RS422 or EIA-RS485.
From local interface it will be possible to read all the network data traffic.
Specific peripheral must be programmed to handle the communication and transmit on the network only when is required, to prevent data collision.
