Ametek ReFlex Programming Manual Instrukcja Użytkownika Pobierz pdf (Strona 74)

ReFlex Power™ Programming Manual DC Module Remote Programming

70 M380056-03 Rev M

‘<t>’ is the Trigger signal specifier. All modules can use the simplex Inter-

module Trigger Buss; these signals are designated ‘a’ through ‘d’. The

ReFlex Power™ Controller has four simplex Front Panel trigger signals,

designated ‘fa’, ‘fb’, ‘fc’, ‘fd’. For all DC Modules, ‘fa’ designates its own Front

Panel trigger in and out pins, which do not need to be configured as an

IN/OUT, they do need to be configured using the TRIG:SLOPe commands.

Table 3-4. SCPI for Module Trigger Routing

SCPI Command Description

TRIGger<n>:INP <t>

Establish that on module n, trigger t is an input. t = a-d, fa (sets switch open)

TRIGger<n>:OUTP <t>

Establish that on module n, trigger t is an output. t = a-d, fa (sets switch open)

TRIG<n>:INP <t>, OUTP <t>

TRIG<n>:OUTP <t>, INP <t>

n = Module number. The RFP’s GPIO Buss signals (t = a, b, c, or d) connected

to ‘fa’, the Modules Front Panel trigger, specifying direction. The trigger signal

is passed through the Module. (switch closed)

TRIG:INP <t>, OUTP <t>

TRIG:OUTP <t>, INP <t>

Map RFPC’s GPIO Buss signals (t = a, b, c, or d) to Front Panel triggers

(t = fa, fb, fc ,fd), specifying direction. (switch closed)

TRIG<n>:DISPlay?

Displays the module’s usage of the GPIO Buss signals.

TRIG:DISPlay?

Displays a list of the module numbers that use the GPIO Buss signals.

TRIG<t>:ENABle

RFPC (t = fa, fb, fc ,fd), trigger enable

TRIG<t>:DISable

RFPC (t = fa, fb, fc ,fd), trigger disable

Note: At this time the ReFlex Power™ Controller only implements direct trigger mapping ‘a’ to

‘fa’, ‘b’ to ‘fb’…

Allow a signal to pass/not pass through the trigger channel specified. (Output enabled).

RIGGER

IGNALS

Trigger signals can be any one of three types:

•

Positive leading edge assertion

•

Negative leading edge assertion

•

Dual edge

Each of these has specific point(s) at which triggering occurs. All three trigger

types can be input or output, and are established by SCPI commands. The

positive edge trigger assertion is used for the example figures herein though

any of the allowed trigger types can be used.

The positive and negative edge triggers should be familiar but the dual edge

trigger may not be as obvious. The trigger input is not analog, it is digital and

follows the levels that are listed within this section. If the quiescent state is

low then the trigger occurs when the signal transitions to the high state. This

is shown as a slow ramp up of the trigger signal, (in fact the ramp time is

typically very rapid). When the trigger signal passes through about 3.2 V the

trigger is asserted. The next trigger occurs when the signal transits back

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