Toshiba GR200 Series - (vi) Receiving “operate command Off” using PLC logic; (vii) Operate condition; (vii)-1 Adding another operate condition signal

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 649 -
(vi) Receiving “operate command Off” using PLC logic
Figure 4.1-28 outlines the reception of the operate command for Off using the PLC function.
Wait for a command
Operate command Off from the local-end
Operate command Off from the remote-end
Operate command On by the PLC
Wait for a next command
Select stage
Select command Off from the remote-end
Select command On from the remote-end
Select command Off from the local-end
Select command On from the local-end
Select command On by the PLC
Select command Off by the PLC
Operate command On from the remote-end
Operate command On from the local-end
PLC logic programmed
by the user
Operate command Off by the PLC
Do nothing
Operation
decision
Success
Failed
Operate logic
Signal output
Figure 4.1-28 Outline of operate command for Off
Figure 4.1-28 depicts the operate logic when a signal “Operate Command Off (PLC-Off-
Control)” is generated by the PLC function. There are two input points for reception of this
command signal, unlike the signal “Operate Command On (PLC-On-Control)”. That is, if an
inter-lock check is required, apply the signal at connection point (PLC#3; i.e.,
DEV01_OP_INTERLOCK). If, on the other hand an interlock check is not required, apply the
signal at connection point (PLC#4; i.e., DEV01_OP_COMMAND).
PLC#1 an PLC#2 shown in Table 4.1-3 should be treated as PLC#3 and PLC#4 here.
Note that the user should set PLC for scheme switch [SPOS01-LGCFEXOT]
(vii) Operate condition
In a manner similar to which the conditions have been examined for the select command, the
conditions for an operate command should be understood. Figure 4.1-29 illustrates the logic to
examine an operate condition; the operate condition is determined by signal “SPOS01_STATE”,
if the functionality of the original logic does not meet with user-requirements, the following
alternatives are available:
1. The user can replace the original logic with alternative logic.
2. The user can add another signal to the original logic.
Adding another operate condition signal
If the addition of another signal is required, the user can add the signal to the operate condition
logic using connection point “Additional Condition”
1. Add a user-preferred signal using “SPOS01IN_TMP_31”, listed as PLC#1 in Table