DeviceNet™ to RS232 Gateways

5-pin male microconnector

Software selectable data word formats [high/low byte] or [low/high byte]

11-28VDC, 200mA max.

125K, 250K, 500K bits-per-second Rotary switch or software selectable

Polled

DeviceNet Group 2 Only Slave

ISO 11898

4 to 68 bytes (4 overhead, 0 to 64 Tx Message data), software selectable

Full Protection Circuitry

0 to 63 Rotary switch or software selectable

-30 VDC max.

300, 600, 1200, 2400, 4800, 9600, 19200 bits-per-second Rotary switch or software selectable Parity Even, Odd, None. Software selectable. Automatic parity strip.

8 data bits with no parity, 7 data bits with parity

500V, between RS232 and DeviceNet interfaces

±10 kV

±30 V

Optional Rx Message handshake to control data transfer rates over DeviceNet

±7.9 V (typical)

DB9 male

Indefinite

128 bytes

128 bytes

RTS/CTS, xON/xOFF, None Software selectable

Software selectable framing options - Time Out: Inter-byte delay fixed at 4 byte-times Fixed Length: 0 to 64 byte message lengths Start/Stop Delimiters: 0 to 4 byte start-string and 0 to 4 byte stop-string

STS:
Status Byte
Bit 7 = Rx Buffer Empty
Bit 6 = Rx Buffer Overflow
Bit 5 = Rx Parity Error (automatically resets with new Rx message)
Bit 4 = Tx Buffer Empty
Bit 3 = Tx Buffer Overflow
RxC:
Receive Message Counter. Gateway increments RxC when new Rx Message is in Data field.
TxA:
Transmit Message Acknowledge. Gateway sets TxA equal to TxC after Tx Message is transmitted.
LENGTH:
Number of valid Rx Message bytes in the Data field.
DATA:
Fixed length field (0-64 bytes). Contains Rx Message bytes (left justified). Unused bytes are set to 0x00.

CMD:
Command Byte
Bit 6 = Clear Rx Buffer (set bit to clear overflow error)
Bit 3 = Clear Tx Buffer (set bit to clear overflow error)
RxA:
Receive Message Acknowledge. Optional Rx handshake byte. Application sets RxA equal to RxC after processing last received message.
TxC:
Transmit Message Counter. Application increments TxC when new Tx Message is in Data field.
LENGTH:
Number of valid Tx Message bytes in Data field.
DATA:
Field length field (0-64 bytes). Contains Tx Message bytes (left justified).

4 to 68 bytes (4 overhead, 0 to 64 Rx Message data), software selectable

3.25 x 2.37 x 1.08 inches (82.6 x 60.2 x 27.4 mm) 0.5 inch (12.7 mm) mounting tabs

0.1875 inch (4.76 mm) diameter

0 to 70°C

-40 to 85°C