
Motionnet Local Output Board MNET-D304 YA7084-0/1
5. Specifications
Specifications of this board are shown below.
Item Signal
name Specifications
Cyclic communication times and
data transfer cycles
Maximum of 0.12 msec, when using 8 devices. #1
Maximum of 0.24 msec, when using 16 devices. #1
Maximum of 0.49 msec, when using 32 devices. #1
Maximum of 0.97 msec, when using 64 devices. #2
(Data transfer speed: 20 Mbps, when using our
recommended cable #1:100m, #2: 50m)
Total serial communication 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 coding
method NRZ signed
Serial communication method Half-duplex communication
Connection method Multi-drop connection using a LAN cable or our
proprietary cable.
Serial communication device
number
SW1-
A0 to A5
Assignable device numbers, 0 to 63.
Set using switches.
Serial communication transfer
speed
SW2-
B0, B1
20 Mbps/10 Mbps/5 Mbps/2.5 Mbps
Set using switches.
Output status setting when a
communication error occurs SW2-TD
Maintain current status / Reset
Select one using a switch
(The selected output is used when the watchdog
timer times out during communication)
Watchdog timer setting SW2-TM
When 20 Mbps is selected: 20ms / 5ms
When 10 Mbps is selected: 40ms / 10ms
When 5 Mbps is selected: 80ms / 20ms
When 2.5 Mbps is selected: 160ms / 40ms
Select one of the above using a switch.
(This is the data sending interval allowed by the
center device.)
Break frame request SW2-BK Send a break frame.
Set using a switch.
Termination resistance setting SW2-TR
Enable termination resistance on the last device on
a serial line.
Set using a switch.
Display serial communication
status
RUN
ERR
RUN: While receiving serial communications
normally, the green LED is lit.
ERR: When a serial communication error occurs
continuously, the red LED is lit.
Input/output status display
Input: The green LED goes on when the input
photocoupler turns on.
Output: The red LED goes on when the output
transistor turns on.
Selection of a common line JP1 to 8
Connection between the input/output circuit
commons and CN5, the input power terminal.
Set using a jumper connector.
G9002 reference clock 80 MHz
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RemoteI/O & RemoteMotion