4.2 Main Commands
75
4.2.19 Request Latch Mode (LTMOD_ON: 28H)
Related Parameters
Byte LTMOD_ON Description
Command Response
128H 28H
Processing clas-
sifications
Control com-
mand group
Synchronization
classifications
Asynchronous
2LT_SGN ALARM
Processing time Within commu-
nications cycle
Subcommand Cannot be used
3 − STATUS • Sets the modal latch mode. If a latch signal is input during modal latch
mode, position latching will be performed.
• Can be used during phases 2 and 3.
• A latch signal can be selected using LT_SGN. Refer to Latch Signal
Field Specifications (LT_SGN).
• Use CMDRDY = 1 to confirm that the Request Latch Mode command
has been received.
• Confirm that L_CMP is 1 in STATUS at the completion of latching.
-When there is monitor data such as SMON or POSING appended to
the command response, LPOS is forcefully returned to MONITOR2.
-When there is no monitor data such as PRM_RD or ALM_RD
appended to the command response, confirm that L_CMP is 1 in STA-
TUS, then use a command that has monitor data such as SMON in the
response and select LPOS to confirm.
• Once the latch operation has been performed, it will not be performed
again even if a latch signal is input. Send a LTMOD_OFF command and
then send a new LTMOD_ON command.
• Interference with another latch mode command
-During the execution of a command such as LATCH, ZRET, or
EX_POSING, the LTMOD_ON command cannot be used. If this com-
mand is used during the execution of these commands, the Command
warning 4 (A.95D) will occur.
4
5 MONITOR1
6
7
8
9 MONITOR2
10
11
12
13 SEL_MON
1/2
SEL_MON
1/2
14 − IO_MON
15
16 WDT RWDT
17 For sub-
commands.
For sub-
commands.
18
19
20
21
22
23
24
25
26
27
28
29
Parameter No. Description
Pn820 Latching Area Upper Limit
Pn822 Latching Area Lower Limit
TOEP_C710806_03A_1_0.book Seite 75 Montag, 2. Juli 2007 3:55 15
To Next Page
Loading...
