
2.SIGNAL DESCRIPTIONS HANDLING B-65395EN/01
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2.1.2 Direct Command Interface
Locations Yy+0 to Yy+3 are allocated as the DO signal area, while
locations Xx+0 to Xx+3 are allocated as the DI signal area. To control
the servo amplifier unit, turn on or off directly those signals that are
assigned to these areas or read them.
In the "instruction command area", direct commands (instruction
commands) are assigned to locations Yy+4 to Yy+15, which are used to
send commands to the servo amplifier module. Also, direct commands
(response commands) are assigned to locations Xx+4 to Xx+15; receive
the response commands for instruction commands.
CNC (host) → Servo amplifier module (DRC=1)
7 6 5 4 3 2 1 0
Yy+0 ST -X +X MD4 MD2 MD1
Yy+1 DRC WFN *ILK SVFX *ESP ERS
Yy+2 RT DRN ROV2 ROV1 *OV8 *OV4 *OV2 *OV1
Yy+3 INPF
Yy+4 EBUF EOREND ECNT
Yy+5 Direct command (function code)
Yy+6 Direct command (command data 1)
Yy+7 Direct command (command data 2)
Yy+8 Direct command (command data 3)
Yy+9 Direct command (command data 4)
Yy+10 Direct command (command data 5)
Yy+11 Direct command (command data 6)
Yy+12 Direct command (command data 7)
Yy+13 Direct command (command data 8)
Yy+14 Direct command (command data 9)
Yy+15 Direct command (command data 10)
CAUTION
In the past, the "V READY OFF alarm ignore signal
(IGNVRY<Yy+1#6>)" existed. When the servo
amplifier module is normal, however, V READY
OFF alarm (No. 401) is not issued. This signal is,
therefore, deleted. If this signal was used in the
ladder program, delete it.