Table of Contents
Advertisement
LED Name
Description
**
Ethernet Port 1 – RX
E1 RX
(receive)
Green LED
*
Internal Port 1 (INTR1) for
I1 ACTV
Redundancy (active)
Green LED
**
Internal Port 1 (INTR1) for
I1 L/RX
Redundancy (link/receive)
Green LED
PI2 TX
Plug-in Port 2 – TX
(transmit)
Green LED
PI2 RX
Plug-in Port 2 – RX (receive)
Green LED
PI2 CM
Plug-in Port 2 – CM (channel
monitor)
Green LED
**
USB Device Port – RX
D1 RX
(receive)
USR1-
User application program
USR4
LEDs
Green LED
**
The LED names E1 LNK and RX and D1 RX appear only in CPU 3640 and CPU 3680.
*
The LED names I1 ACTV, I1 L/RX, H1 LNK1/LNK2, and D1 RX appear only in CPU 3680.
Status
ON – Receiving Data
In case of RAM test and startup failure, see
Table 4-2 and Table 4-3.
ON – This CPU is the active CPU.
OFF – This CPU is the standby CPU or the
system does not include Redundancy.
ON – There is a link between the active and
standby CPUs.
Blinking – There is a link between the active
and standby CPUs and data is being
received.
OFF – The system does not include
Redundancy.
ON – Transmitting Data
ON – Receiving Data
ON – Channel Busy (if port is in use by radio,
RS485, or RS232)
– Network Connected (if an IP plug-in is
used)
ON – Receiving Data
Controlled by the user application program.
Light consecutively and repeatedly one after
the other when entering boot mode.
4-14
CPU Module
Advertisement
Table of Contents
