Delta RMC151 - Manual (Page 1032)

RMC70/150 and RMCTools User Manual
9.2.6. Controller Registers
9.2.6.1. Controller Tags
In addition to the controller registers (file F7) listed in the RMC150 register map and RMC70
register map, the RMC includes the following system tags. These are not directly accessible
from outside the RMC. From within the RMC, they can be accessed using the tag names.
Tag Name
Data
Type
How to Find
in Tags
Browser
Description
_FirstScan BOOL Controller→
First Scan
True on the first loop time after entering RUN
mode, otherwise it is false. See the Program
Triggers topic for usage details.
_SysMS DINT Controller→
System
Milliseconds
System Milliseconds. Contains the number of
milliseconds since the RMC powered up. This
DINT value will wrap around to -2147483648
after it reaches its maximum value of
2147483647.
_SysTicks DINT Controller→
System Ticks System Ticks. Contains the number of control
loops since the RMC powered up. This DINT
value will wrap around to -2147483648 after
it reaches its maximum value of 2147483647.
9.2.6.2. Controller Status
Type: Controller Info Register
RMC70 Address: %MD20.7. See Register Map topic for other address formats.
RMC150 Address: %MD44.7. See Register Map topic for other address formats.
System Tag: _Controller.Status
How to Find: Address Selection Tool → Controller → Status
Data Type: DWORD
Accessibility: Read Only
This register indicates the state of various controller items. Use this register to determine
whether the controller is enabled, if it is in Run or Program mode, or to check the First Scan
bit.
Bit Tag Name
Description
0 _Controller.Status.Run RUN/PROGRAM Mode
This bit indicates whether the
controller is in RUN (1) or
PROGRAM (0) mode. See the
RUN/PROGRAM Mode topic for
details.
1 _Controller.Status.Enabled Controller Enabled
This bit is initially cleared on
power-up, but will be set after
the Enable Controller (7) or
1012 Delta Computer Systems, Inc.