Micromod MOD: 1800P - MOD 30ML Identity Module (Version 2) System, I/O and Communications Functions - Manual (Page 69)

Logic Functions - Book 1
LOOP BLOCK
3-43
3.5 LOOP BLOCK (LP)
The loop block is an environment block that provides a ’master control’ function for those
function blocks found between it and the next loop block in the user database. This includes
’controlling source’ write access for consoles and computers and group control of function
block execution by either database logic or operator/computer command. See Section 2.2.2
for a further description of loops.
Available to the user as block outputs are the remote state error active/unacknowledged
status and quality data, the loop’s composite state, and the computer or console status. A
functional block diagram of the block is shown in Figure 3-11. The menus used to configure
the block are shown in Figure 3-12 and 3.13.
RUN
NONE
LSP Quality
LSP
BAD
CNSTATUS
CPSTATUS
Scan Group
(1 to 5)
Diagnostic
Suppression
Group
(NONE, 1-7)
State
(RUN, HOLD,
OFF, DEBUG)
Bad Inputs
Accepted
(YES/NO)
GOOD
Loop Block
Remote State
Invalid or has
bad quality
(ENAB/SUPP)
DEBUG
HOLD
OFF
Quality and
Error Check
Remote State
Input
LSP
Remote Error
State
RSTAQ
RSTUQ
RUN
HOLD
State
CSTATE
RSTU
RSTA
OFF
DEBUG
LSP
RUN
HOLD
OFF
DEBUG
Figure 3-11. Loop Block, Functional Block Diagram