Rockwell Automation Energy Management Accelerator Toolkit Quick Start - Manual (Page 300)

300 Rockwell Automation Publication IASIMP-QS016C-EN-P - October 2014
Chapter 11 FactoryTalk View ME Energy Faceplates
Important Program and Operator Control Transfer Considerations
The first rung of the SMC_50_AOI handles the transfer of control from the Logix program (Program Control) to the
faceplate (Operator Control). The Operator Control rung is shown below. It is important to understand how this rung
operates so your desired program to operator and operator to program control transfers are achieved.
For example, these rungs enable the Operator Control of the intended SMC-50 controller. Command requests (Cmd) can
be initiated from either the Logix Programs (ProgOperReq) or RSViewME/SE SMC_50 Faceplate (OperOperReq).
The following is a specific drive example:
EXAMPLE To enable Operator Control for an SMC associated with ‘Motor_1’ AOI instance, a rung can be added to the Logix MainRoutine with
specific input conditions driving an output instruction with the tag name ‘Motor_1.Cmd_ProgOperReq’. Also, a pushbutton in an
RSView ME/SE faceplate can be added with a value tag name of ‘#1.Cmd_OperOperReq’ with the #1 parameter for that faceplate
display associated with ‘Motor_1’ tag.
A ‘Motor_1.Cmd_ProgToOperPermissive’ must also be included in the Logix Program to control whether Program to Operator
Control transfer requests are allowed or acted upon. A tag value of 1 permits the associated control transfer requests. A value of 0
prevents the associated control transfer requests.
ATTENTION: If an Xxxx.Cmd_ProgToOperPermissive tag is set to 1, the associated AOI is programmed to allow a transfer from
Program Control to Operator Control regardless of the current direction, speed, or active status of the SMC_50. Therefore, if the
SMC_50 is running at the time of a Program to Operator Control transition, the SMC_50 continues to run. If a different Program to
Operator Control transition is desired, then the status of the SMC_50 and the Operator command requests must be monitored and
the appropriate Program commands must be issued before the Xxxx.Cmd_ProgToOperPermissive is allowed. Therefore, it is very
important that the status of the SMC_50 is monitored and appropriate Program commands, for the specific application, are issued
before the Xxxx.Cmd_ProgToOperPermissive tag is set, to insure a safe Program to Operator Control transfer.
ATTENTION: If the SMC_50 is started in Operator Mode and the RSView ME SMC_50 Faceplate is closed while the SMC_50 is
running, the SMC_50 continues running. Therefore, it is very important to understand how this operation affects the specific
application and appropriate actions and safeguards are implemented.