FEC AFC1500 - Manual (Page 40)

Termination
Termination of the fieldbus requires a terminating resistor at each end of the
fieldbus. A termination switch is provided on the Profibus-DP interface
board. Set the switch to “ON”, if termination is required. If external
terminators are used, the switch must be in the off position.
GSD File
Each device on a Profibus network is associated with an GSD file containing
all necessary information about the device to be connected. The network
configuration program uses this file during configuration of the network.
The GSD file associated with the FEC device can be downloaded from the
FEC website. www.fec-usa.com (File : hms_1003.gsd)
Direct link:www.fec-usa.com/fecusacomnew/support/index.htm
(the file can also be downloaded directly from HMS - www.hms.se)
The module only supports cyclic I/O
data transmission. Data transmission
244bytes In, 244 bytes out max.
416 total bytes max. Maximum Cyclic I/O Size
Ver. 1.10 Protocol Version
Master/Slave - EIA RS485 Communications Type
Shielded Copper Twisted Pair or fiber
optic Cable
200m max. at 1.5Mbit/s extendable with
repeaters. Distance
126 Note:Node 126 is reserved for
commisioning purposes only Nodes
9.6K - 12M baud - autoselected Speed
Profibus Specifications
Connected to PE Shield Housing
Not Connected Pin 9
Negative RxD/TxD according to RS485 Spec. A- Line Pin 8
Not connected Pin 7
Isolated +5V from RS 485 side +5V Bus Pin 6
Isolated GND from RS 485 side GND Bus Pin 5
Request to send RTS Pin 4
Positive RxD/TxD according to RS485 Spec. B- Line Pin 3
Not Connected Pin 2
Not Connected Pin 1
Profibus connector - D-Sub
Chapter 3: Control Interfaces
40