IDEC FC4A-C10R2 User Manual page 457

Status LEDs
The operation modes of the AS-Interface master module can be changed by pressing the pushbuttons on the front of the
AS-Interface master module or by executing ASI commands. The operation modes can be confirmed on the six status
LEDs on the AS-Interface master module. For details about the ASI commands, see page 28-28.
Status LED Indication
Status LED
Normal Protected Mode
Normal Protected Offline
Connected Mode
Normal Protected
Data Exchange Off
Protected Mode
Local Mode
Configuration Mode
*1: Goes off when AS-Interface power is not supplied.
*2: Goes on when an error is found on the AS-Interface bus.
Address LEDs and I/O LEDs
The operating status and I/O status of each slave can be monitored on the address LEDs and I/O LEDs on the front of the
AS-Interface master module.
Slave Operating Status
The operating status of each slave can be determined by viewing the address LEDs and I/O LEDs.
Address LED
ON
ON
Flash
OFF
Slave I/O Status
The I/O status of each slave can be monitored on the address LEDs and I/O LEDs. Use the short press to change the slave
address when monitoring slave I/O status on the AS-Interface master module. A short press on PB1 increments the
address. At the last address (31B), another short press will return to the first address (0A). A short press on PB2 decre-
ments the address. At the first address (0A), another short press will return to the last address (31B).
The figures below illustrate what happens when you press the PB1 button while the address LEDs indicate 25A. The
address LEDs increment to 26A where a slave is assigned. Note that the address LEDs flash if no slave is assigned.
Monitoring Slave Address 25A
Address LEDs are flashing since
no slave is assigned.
I/O LED
ON or OFF The slave at this address is active.
Flash The slave at this address is active, but has an error.
OFF This address is not assigned a slave.
The AS-Interface bus communication is disabled because the AS-Interface power
OFF
is not supplied or the AS-Interface master module is in normal protected offline.
Short press
on PB1
« FC4A M
28: AS-I
PWR FLT
*1 *2
ON OFF
*1
ON ON
*1
ON ON
*1 *2
ON OFF
*1 *2
ON OFF
Description
I/O LEDs
indicate statuses
S U ' M
ICRO MART SER S ANUAL
M
NTERFACE ASTER
LMO CMO
OFF ON
OFF ON
OFF ON
ON OFF
ON OFF
Monitoring Slave Address 26A
Address LEDs go on and I/O
LEDs indicate the statuses.
»
C
OMMUNICATION
OFF CNF
OFF OFF
ON OFF
OFF OFF
OFF OFF
OFF Flash
28-17