POWER 0111 ON • II CPU 1 Figure 16. Operator's Panel 66 ON 6 OFF PARTITION ON CPU 2
Table IV. Meter Operation under Various TPS Conditions Switch Position TPS State :--' CPU 1 CPU 2 Neutral ON ON CPU 1 attached CPU 2 attached OFF ON Neutral CPU 2 attached ON OFF Neutral CPU 1 attached OFF OFF Neutral I NOTES: 1. Metering-In. Metering-In is a line from all attached control units and is used to condition the CPU meter for operation. The Metering In signal originates from each I/O device and/ or control unit and is generated by the device from the time of acceptance of a command un til the generation of Device End for that com mand. Meter is Running when Metering Out is Active for CPU 1, or CPU 2 CPU 1 only CPU 2 only CPU 2 only CPU 2 only CPU 1 only CPU 1 only Meter is neyer active regardless of Metering Out I from either CPU 1 or CPU 2. 2. Metering-Out. Metering-Out is a line from the channel to all attached control units and is used to condition all meters in assignable units and I/O units. Metering-Out is raised whenever the CPU meter is recording time. 67