Apollo IMY instruction manual Program Function of E1-CON and Optional E2-CON Cont’d

PROGRAM FUNCTION OF E1-CON AND OPTIONAL E2-CON (Cont’d)

“9” - If the alarm option is installed, a low level resets a latched or unlatched alarm into its inactive state. This provides manual override of alarms for system start-up and other unusual events such as system testing.

“10” - A negative going edge toggles the display between “input” and “total” (from input to total, or vice versa). No action is taken on the positive going edge.

“11” - A negative going edge zeros (tares) the input signal and adds the value that was in the input display to the totalizer value, every time this operation is performed. The time-base, scale factor and low cut-out in “Module #5” are in affect disabled, when this function is selected.

“12” - Display hold with offset. A negative going edge tares (zeros) the input signal. Prior to the offset operation, the input signal is saved and held (display hold) as long as the remote input pin is low. On the positive edge, the input display will show zero. If there is an increase to the input signal while the remote input is low, the display will reflect (show) the increase at the positive edge.

“13”- Instrument reading synchronization. A low level disables all meter operations (alarms, total, analog out, etc.). A positive edge resets the start of the A/D conversion, to allow synchronization with external processes and controls. While in this function, the other E-CON pin will be operational.

“14”- Print request. Transmits data according to the print options that have been selected in Program Module #7. If the low time exceeds 800 msec, a second print-out may occur.

“E2-CON” < > If the totalizer option is installed, E2-CON has the same programmable functions as E1-CON.

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