36
○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○
© Systeme Lauer GmbHMODBUS 1-direct driver
○○○○○○○
○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○
○○
C
C.1.1 Delimitation
The successful parameterization of the PCS, as described in the PCSPRO and/or
PCS9092 manual, is assumed. This appendix relates exclusively to the use of a
PCS together with a Modicon controller of the AEG company. This controller is
defined in the following as programmable controller. The AEG-specific terms and
the programming of the programmable controller with the LMODSOFT software
are assumed as known. The used communication protocol is defined as MODBUS
1 protocol. The enclosed handling software was created on a Modicon 984-131
CPU with 2 Modbus interfaces.
This driver is capable of running with all CPU types that feature a MODBUS 1
slave interface. Up to now the following 984 CPU board series are known:
-120, -130, -145, -380, -381, -385, -480, -485, -680, -685, -780, -785, - X, - A and B.
Warning!
Use only the PCSPRO and/or PCS9092 software for the configuration. Other
software packages can initiate malfunctions in the PCS and programmable
controller.
C.1.2 Loading of the MODBUSPS driver to the PCS
During configuration of the PCS, the application program with data and a selected
driver are both transferred. The driver is called MODBUSPS.DRV . The procedure
is the same as described in the PCSPRO/PCS9092 manual.
The following variables for the MODBUSPS driver can be set:
The AA variable and/or COM_TIMEOUT: PCS time-out time.
The Time-out time determines the maximum admissible time for the processing
of the synchronization word in the programmable controller. As default, this
time is 300 for AA. This corresponds to 3000 ms = 3 seconds. Admissible values
for the AA variable are from 200 to 999 (= 2 to 9.9 sec.). The AA time-out time is
only activated with the SYNC AND TIME-OUT setting.
The FROM variable and/or COM_ERR_REPT: Maximum number of repetitions
As MODBUS master, the PCS repeats the order if a fault appears in the
communication. After x faults following another (set by the AB variable) a loss
of the communication is displayed on the PCS and the communication is
restarted. Values are possible between 1 and 50, default value is 5.
The AC, AD, AE or AF variable: Baud rate and transfer type DIL switches 5 and
6 or the rotary switch on the rearside of the PCS can be used with 4 settings.
Displayed is the default setting:
Rotary switch Dil5 Dil6 Variable Default setting
0 off off AC/COM_MODE0 19200 RS-232 + SYNC
1 on off AD/COM_MODE1 19200 RS232 +NOSYNC
2 off on AE/COM_MODE2 9600 RS-232 +SYNC
3 on on AF/COM_MODE3 9600 RS232 +NOSYNC
First commissioning
C.1. First commissioning
To Next Page
Loading...
Need help?
General