Yaskawa MP920 Communications Module - Manual (Page 21)

1 Communications Modules
1.1.2 Specifications
1-4
1.1.2 Specifications
The following table lists the communications specifications of the Communications Mod-
ules and outlines their functions. Refer to the chapters on individual Communications Mod-
ules for details.
Table 1.2 Communications Module Specifications
Item 215IF 217IF 218IFA Standard Serial
Interfaces 215IF × 1 RS-232C × 2
RS-422/485 × 1
10Base-T RJ-45 RS-232C × 2
Transmission
Distance Total distance
4 Mbps: 170 m
2 Mbps: 270 m
1 Mbps: 420 m
Maximum distance
RS-232C: 15 m
RS-422/485: 300 m
Total distance: 100 m/segment
Total distance when 4 repeaters
are connected: 500 m Maximum distance
15 m
Baud Rate 1/2/4 Mbps
(Software selectable) RS-232C:
30 bps to 19.2 kbps
RS-422/485:
2400 bps to 76.8 kbps
10 Mbps 30 bps to 19.2 kbps
Access Method Token passing Start-stop synchronization IEEE802.3
CSMA/CD Start-stop synchroniza-
tion
Frame Configuration Conforms to HDLC − DIX specification −
Connection Type − − TCP, UDP, IP or ARP −
Max. Number of
Nodes 30/segment − Depends on the hub that is used
and the network. −
Communications
Mode Message communica-
tions
Link communications
Engineering communica-
tions Message communications
Engineering communica-
tions Message communications
Engineering communications Message communica-
tions
Engineering communica-
tions
Max. Number of
Words Transmitted Link communications:
2,048 words
Message and engineer-
ing communications: 512
words − 512 words −
Communications
Protocol MEMOBUS
(Master/Slave)
No Protocol MEMOBUS
(Master/Slave)
MELSEC
OMRON
No Protocol Extended MEMOBUS (Master/
Slave)
MEMOBUS
(Slave only)
MELSEC
No Protocol MEMOBUS
(Master/Slave)
MELSEC
No Protocol
Max. Number of
Connections Total number of stations
64 stations/network
(with repeaters) − 20 (10 + 10) connections −
Connection
Configuration N: N RS-232C: 1:1
RS-422: 1:1
RS-485: 1:N N: N 1:1
Transmission Format − Data bit length: 7 or 8
Stop bits: 1 or 2
Parity: Even, odd or none − Data bit length: 7 or 8
Stop bits: 1 or 2
Parity: Even, odd or none