
6. CONNECTION OF I/O UNITS TO
MACHINE INTERFACE
B–63783EN/01
136
Fixed addresses directly supervised by the CNC (for 15i/150i)
ADDRESS 7 6 5 4 3 2 1 0
X0006 *ESP
X0007 AE2 AE1
X0008 SKIP1
When DI addresses are allocated in units of 16 bytes, starting at X0005
X0005
X0006
X0007
X0020(DO alarm detection)
X0008
X0009
X0010
X0011
X0012
X0013
X0014
X0015
X0016
MPG
X0017(for 1st MPG)
X0018(for 2nd MPG)
X0019(for 3rd MPG)
Input signal
Reserved
DO alarm detection
*ESP fixed signal
AEn fixed signal
When allocating DI addresses starting from X0005 allows the AEn
signal to be used and the *ESP fixed signal to be allocated to an
address for which the common voltage is fixed to 24 V.
Turning the DO (output signal) power on and off (DOCOM)
All the DO signals can be turned off simultaneously by turning off
(opening) the DO (output signal) power supply pin “DOCOM”. Doing
so causes the DO signal status to change as shown below.
DOCOM
ON
OFF
ON
OFF
ON
OFF
When DO is ON in the
sequence
When DO is OFF in the
sequence
NOTE
1 When the DO signal is in the ON state in the sequence, the ON or OFF state of the DOCOM
pin determines the state of the signal, as indicated by the dotted lines in the above figure.
2 Do not turn off the +24 V supply, provided by the CPD1 to the I/O module, during the operation.
Turning off the +24 V supply would cause a CNC communication alarm. When turning on the
power, the +24 V supply to the I/O module must be turned on before or at the same time as the
power supply to the CNC. When turning off the power, the +24 V supply to the I/O module must
be turned off after or at the same time as the power supply to the CNC.