Configuration And Initialization Of Rtex Communication System; Outline; System Structure - Panasonic MINAS-A5NL Series Technical Reference

2. Configuration and Initialization of RTEX Communication System

2-1 Outline

MINAS-A5N Series equips the communication ASIC "MNM1221" which can be functioned in combination with
100BASE-TX PHY (physical layer chip) conforming to IEEE 802.3.
You can compose 100 Mbps real-time communication system of Master-Slave method that suits to multi-axes servo
control, by ring-connecting the slave (MINAS-A5N series etc.) with the master (host controller) equipped with the same
MNM1221.
MNM1221: Option No. DV0P444

2-2 System structure

Master
Slave
Node address is the ID (MAC-ID) used to identify the slave on the network, and set up with the rotary switch (RSW) on
the front panel.
For the master produced by using the sample code provided by us, the node address setting procedure shown in the figure
above will not be required.
Notes:
• A Hub required in standard 100BASE-TX is not used because of ring topology.
• In the above figure, pulse transformer which is connected between PHY and connector and other components are
omitted.
• Use the STP (shield twisted pair) cable of Category-5e or upper specified by TIA/EIA-568 Standards for the
communication cable.
R2.0
Host
RX RX
PHY PHY
MNM1221 MNM1221
CPU CPU
MINAS-A5N
MINAS-A5N
Node address = 0 Node address = 1
CPU
MNM1221
PHY
RX
PHY
MNM1221
MINAS-A5N
Node address = n
(n <= 31)
Motor Business Division, Appliances Company, Panasonic Corporation
No. SX-DSV02310 - 2 -
RTEX
CPU