ADLINK PCI-7856 - Manual (Page 25)

Motionnet Master-Slave Motion System 13
PCI-7856
User’s Manual
3.1 MNET System Specifications
Functions of MNET system can be classified as serial communica-
tions and motion control.
Item Specifications
Total serial communi-
cation line length
 Maximum of 100 m 
(At a data transfer speed of 20 Mbps with 32 devices connected)
 Maximum of 50 m 
(At a data transfer speed of 20 Mbps with 64 devices connected)
 Maximum of 100 m 
(At a data transfer speed of 10 Mbps with 64 devices connected,
using our recommended cables)
Serial communication
interface
Pulse transformer and RS-485 specification line transceiver
Serial communication
protocol
Our proprietary protocol
Serial communication NRZ signed
Serial communication
method
Half-duplex communication
Connection method Multi-drop connection using a LAN cable (CAT5/CAT5e STP/S-STP)
Serial data transfer
speed
20 Mbps/10 Mbps/5 Mbps/2.5 Mbps
Programmable speed setting
Maximum No. of MNET
modules
64 (Total axes shall be 64 if you connected all single axis modules, otherwise
the total axes shall be 256 axes if all modules belong to MNET-4XMO)
Table 3-1: MNET Specifications