Watson-Marlow MM440 - Manual (Page 189)

Issue 10/06 3 Functions
MICROMASTER 440 Operating Instructions
6SE6400-5AW00-0BP0 189
3.12.4 Manual / automatic operation
Parameter range: P0700, P1000,
P0810, P0811
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 440, indexed parameters P0700 or P1000 and BICO
parameters P0810 and P0811 are used to changeover (toggle between) the
manual/automatic modes. The command source is defined using P0700 and the
setpoint source is defined using P1000 (refer to Table 3-30), whereby index 0
(P0700[0] and P1000[0]) defines the automatic mode and index 1 (P0700[1] and
P1000[1]) the manual mode. BICO parameters P0810 and P0811 are used to
changeover (toggle between) the automatic and manual modes. These BICO
parameters can be controlled from any control source (refer to Table 3-29). In so
doing, in addition to P0700 and P1000, also all of the other CDS parameters are
changed over (manual/automatic changeover is generalized as a CDS
changeover).
BOP
Setpoint
channel
Motor
control
Sequence control
MOP
ADC
FF
Terminals
USS
CB
Co
m
m
an
d s
ou
rc
e
Se
tp
oi
nt s
our
ce
P0700[0] = 2
P0700[1] = 1
Cmd
Remote
Cmd
Local
P1000[0] = 2
P1000[1] = 3
Setpoint
Remote
Setpoint
Local
P0810
0
1
2
0
1
2
P
070
0
P10
00
P0811
Cmd
3. CDS
Setpoint
3. CDS
Fig. 3-67 Changing-over using the BICO parameters P0810 and P0811