COMMUNICATIONS GUIDE FIELDBUS INTERFACE
MM300 MOTOR MANAGEMENT SYSTEM – COMMUNICATIONS GUIDE 53
Fieldbus interface
The fieldbus interface is configurable as either Profibus DPV0 or D eviceNet. Both Fieldbus
interfaces support control and status – refer to the specific data map below for details.
Note that external power, 5 to 24 VDC, is required for this interface to operate. (Ensure that
switches 7 and 8 of the DIPswitch on the communication card, are ON.)

Profibus protocol (DP V0)

To enable the Profibus physical interface, ensure that switches 3 and 4 of the DIP switch on
the communications card (on the CPU module) are on. The external connections through
the Fieldbus interface are as follows.
Table 10: Fieldbus interface external connections (Profibus)
The Modbus status (MS) and network status (NS) LEDs indicate the status of the Fieldbus
interface.
Table 11: Profibus LED indications
When used for Profibus, the fieldbus port has the following characteristics.
• Baud rate: 9600, 19200, 31250, 45450, 93750, 187500, 500000, and 1.5M bps (auto-
detect)
• Address: 1 to 125
• Vendor ID: 3005 (hex)
• Data table size: inputs = 240 bytes, outputs = 240 bytes
Output bit must be 1 for a minimum time of 100 ms, to be actioned.

Profibus Output Data

Commands are actioned on rising edge (0 to 1 transition).
Pin Connection (external device)
V– Pin 5
L Pin 8, line A (negative TX/RX)
CCommon drain
H Pin 3, line B (positive TX/RX)
V+ Pin 6
LED Color Description
MS Green Processor OK
Off Processor FAIL
NS Green Communications to master OK
Red Communications to master FAIL
Bit Description
1Reset
2Lockout Reset
3Stop
4Start A
5Start B