B.3 list of cve objects – Festo Электроцилиндр User Manual
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B
Control via Ethernet (CVE)
Festo – GDCP-CMMO-ST-EA-SY-EN – 1301a – English
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Example: activation of “Operation enabled”
Assumption: the drive has been switched on. An error is not present; the output stage is enabled via
the STO input (i.e. CVE object #358 exhibits value 255). Nothing is connected to the I/O interface of the
CMMO-ST. The “Switch on disabled” status is active; the status word exhibits the value 0x00800440.
1. Activate the higher-order controller for the CVE connection by writing the value 2 into CVE object #3.
2. Activate the “Ready to switch on” status by writing the control word 0x00000006. When this status
has been reached, the status word exhibits the value 0x00000421.
3. Activate the “Switched on” status by writing the control word 0x00000007. As soon as this status
has been reached, the status word has the value 0x00040423.
4. Activate the “Operation enabled” status by writing the control word 0x0000000F. As soon as this
status has been reached, the status word has the value 0x00060427.
Example: starting homing
Assumption: the “Operation enabled” status is active. Homing has been parameterised correctly
via FCT.
1. Select the “homing” drive function by writing the value 6 into CVE object #120.
2. Start the homing run by writing the control word 0x0000001F. At the end of the homing run the
status word exhibits the value 0x00068427.
3. Reset the start signal by writing the control word 0x0000000F.
Example: start of a record
Assumption: the “Operation enabled” status is active. The drive is referenced (i.e. SW.AR = 1).
1. Select the “position record” drive function by writing the value 1 into CVE object #120.
2. Select the desired record by writing the record number into CVE object #31.
3. Start the record by writing the control word 0x0000001F. While the positioning record is being ex-
ecuted the status word exhibits the value 0x00048127. When the record has ended the status word
exhibits the value 0x00068427.
4. Reset the start signal by writing the control word 0x0000000F.