E5CNH E5AN-H E5EN-H Digital Controllers User's Manual - OMRON

Using a Remote SP Section 4-23
SP Mode
Remote SP Monitor
SP Tracking
156
When the SP Upper Limit or SP Lower Limit parameter setting is
changed, the remote SP upper or lower limit will be forcibly changed to
the SP upper or lower limit. For example, if the upper limit for the SP limiter
is changed from A to B, the remote SP upper and lower limits will be
changed as shown in the following diagram.
Before change
After limiter upper limit change
SP limiter
RSP scaling range
SP upper and lower limits
Remote SP upper and lower limits
Upper limit changed
from A to B
The SP mode is used to switch between local SP and remote SP. When a
remote SP is selected in SP mode, the RSP single indicator will light.
In remote SP mode, the remote SP can be checked on the No. 2 display in the
PV/SP Display Screen. In local SP mode, it can be checked with the Remote
SP Monitor parameter.
If the SP tracking function is enabled, the local SP inherits the remote SP
value after switching from remote SP to local SP. To enable the SP tracking
function, set the SP Tracking parameter to ON.
SP tracking operates as follows:
LSP1
LSP2
RSP2
SP mode
LSP
RSP LSP
1,2,3... 1. Switching to remote SP when the SP is LSP1 will result in switching to
RSP2.
2. The operation will proceed according to remote SP inputs.
3. If the SP tracking function is enabled, the SP will become LSP2 after
switching to local SP. If the SP tracking function is disabled, the SP will remain
as LSP1.
If the SP tracking function is enabled when switching from local SP to
remote SP, the SP ramp will operate.
B
A