Festo CPX-E Series, Description

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3 Parameterisation
Festo – CPX-E-PB-EN – 2017-07 – English 21
3.2.4 Bus start
For proper commissioning, the DP-Master must perform the following functioning in the order below:
1. request diagnosis
2. Send parameterisation data – Set_Prm
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3.2.5.
In the case of the start parameters, parameter sets are loaded to the bus module by the master.
The bus module distributes the parameters across the modules.
3. Check configuration data – Chk_Cfg
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3.2.6.
4. Transfer input and output data – Data_Exchange
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3.2.8.
5. Read diagnostic data – Slave_Diag
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3.2.7.
After each interruption of the network system, e.g. after an interruption of the bus module power supply,
the parameter record is sent to the bus module by the DP master once again.
An exchange of individual CPX-E modules is therefore possible without manual parameterisation.
3.2.5 Send parameterisation data – Set_Prm
The parameterisation data is transferred to system CPX-E-System by the DP master using function Set_Prm.
Octet 1: Station status
Settings
Designation Bit
7 6 5 4 3 2 1 0
Response monitoring (Watchdog) of system CPX-E WD_On
Monitoring deactivated 0
Monitoring activated 1
FREEZE mode request Freeze_Req
FREEZE mode not requested by master 0
FREEZE mode set by master 1
SYNC mode request Sync_Req
SYNC mode not requested by master 0
SYNC mode set by master 1
Locking/unlocking of system CPX-E Unlock_Req/
Lock_Req
Min T
SDR
1)
and slave parameters can be overwritten 0 0
System CPX-E unlocked for other masters 0 1
System CPX-E locked for other masters 1 0
System CPX-E unlocked for other masters
2)
1 1
1) Minimum Station Delay Responder
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Tab. 3.11
2) Bit 6 has priority over Bit 7
Tab. 3.9
Octet 2 … 3
Settings
Designation Bit
7 6 5 4 3 2 1 0
Transmission of the response monitoring time (Watchdog time)
of system CPX-E with these two octets.
(range of values respectively 1 … 255)
TWD [s] = 10 ms x WD_Fact_1 x WD_Fact_2 WD_Fact_1
1)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
WD_Fact_2
2)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1) Octet 1
2) Octet 2
Tab. 3.10