Inovance MD500-EM1 - Expansion Card Parameters

Communication Parameters
‑22‑
No. Circumstance
Symptom
Solution
1
Both devices support
IP conflict detection,
and
are powered on
sequentially.
The device that is
powered on first
retains the IP address
and continues to
operate, while the
device that is powered
on later enters conflict
mode.
Check the IP address
of the devices and
modify the duplicate
IP address.
2
Both devices support
IP conflict detection,
and
are powered on almost
at the same time.
Both devices enter IP
conflict Mode at the
same time.
3
One device supports IP
conflict detection,
while the other does
not.
No matter which
device is powered on
first, the device that
does not support IP
conflict detection will
retain the IP address,
while the device that
supports IP conflict
detection will enter
conflict mode.
Note
● The expansion card implements active conflict detection upon power‑on and
DHCP IP address assignment, and it implements passive detection at other times.
If the same dynamic (static) IP address is separately assigned to two devices,
which are then connected to a network, neither of the two expansion cards will
report an IP address conflict.
● IP address assignment by using the DHCP function will fail if an assignment
conflict occurs during the process.
4.3 Expansion Card Parameters
Parameter Name Unit
Description
FD‑61
First two bytes of MAC
address of expansion
card
1
MAC address of
expansion card
FD‑62
Two middle bytes of
MAC address of
expansion card
1
MAC address of
expansion card