Siemens 420 manual Manual / automatic operation, Parameter setting Command source

Issue 07/04 3 Functions

3.12.4Manual / automatic operation

Parameter range:	P0719, P0810
Warnings	-
Faults	-
Function chart number:	-

It is necessary to change-over from the automatic mode into the manual mode to load and unload production machines and to feed new materials (e.g. batch processing). The machine operator carries-out the preparatory activities for subsequent automatic operation in the manual mode. In the manual mode, the machine operator locally controls the machine (enters the ON/OFF command as well as also the setpoint). A changeover is only made into the automatic mode after the set-up has been completed. In the automatic mode, the control (open-loop) of the machines and production processes are handled by a higher-level control system (e.g. PLC). This operation is maintained until it is necessary to again load and unload the machine or feed new material into the machine or production process.

For MICROMASTER 420, indexed parameter P0719 and BICO parameter P0810 are used to change over between the manual and automatic mode. The command and setpoint sources are defined using P0719 (refer to Table 3-21), whereby P0719 index 0 (P0719[0]) defines the automatic mode and P0719 index 1 (P0719[1]) the manual mode. BICO parameter P0810 is used to change-over between the automatic and manual modes. P0810 can be controlled from any control sources (refer to Table 3-20).

source	Terminals		P0810
	P0700	P0719[0] = 00	Cmd
Command				0
			Remote
				Sequence control
		P0719[1] = 11	Cmd
	BOP			1
			Local
	USS
	CB
source	P1000	P0719[0] = 00	Setpoint	0
			Remote
				Setpoint	Motor
	MOP	P0719[1] = 11	Setpoint	channel	control
Setpoint			Local	1
	ADC
	FF

Fig. 3-47 Changing-over using the BICO parameter P0810

Table 3-20 Examples for the parameter settings of P0810

Parameter setting		Command source
P0810	= 722.2 requires P0703 = 99	Digital input 3
P0810	= 2032.15	USS at the BOP link
P0810	= 2036.15	USS at the COM link
P0810	= 2090.15	CB at the COM link

MICROMASTER 420	Operating Instructions
6SE6400-5AA00-0BP0	117