Yaskawa MEMOCON GL120 - Manual (Page 240)

System Components: Functions and Specifications
4.4.11 M-NET Module cont.
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Item Specification
Communications Ports
S ifi i
Number of Ports 2
Specifications
Communications
Method
Half-duplex, start-stop synchronization
Transmission Level Conforms to RS-422
Media (Transmission
Medium)
JKEV-SB 0.75 mm 2 x 2P:
Polyethylene-insulated cable with copper braid shield
Note JKEV-SB conforms to the specifications of the Japa-
nese Electric Wire and Cable Makers’ Association.
Baud Rate 9.6, 19.2, 38.4, or 57.6 Kbps
Number of Stations 15 Slaves max.
Station Address 1 to 15
Note 1 to 7 when B1086 and B2806 are used as Slaves
Transmission Distance Up to 1 km (total length)
Data Format
Transmission between Master and Slave is in the following
data format:
1) Start bits: 1
2) Data bit length: 7
3) Parity check: Yes
4) Parity: Even
5) Stop bits: 1
Transmission Error
Detection
Detects vertical parity (even parity)
Detects horizontal parity (even parity)
Transmission Mode T Mode Y Mode
Number of Digital
Transmission
Points
Input points: 256
Output points: 256
Input points: 256
Output points: 256
Number of
Register
Transmission
Points
Input registers: 0
Output registers: 0
Input registers: 15
Output registers: 15
Error Measures
(RAS)
Automatic removal and
recovery function for error
stations: None
Automatic removal and
recovery function for error
stations: Yes
Insulation Method Photocoupler
External Connection Removable terminal block with M3 screw terminals
4. Using M-NET Modules
1) Number of Modules
a) Communications between M-NET Modules are performed using I/O references, such
as input relays, output coils, input registers, and output registers. Therefore, I/O must
be allocated for the slot to which the M-NET Module is mounted according to the fol-
lowing rules.
4