Vermes MDS 358X user Manual.pdf - 第80页

Operation VTK - TR -BA- 072e - 1 - User Manua l MDS 358X S eries 69 Fig. 51 : Circu it d iag ram INFORMATION Sele ct pin s with other co mman ds Select p ins wi ll be chec ked for trigg er ing vi a PLC int erface, for t …

Operation

VTK-TR-BA-072e-1 - User Manual MDS 358X Series

7.8 Select Pins

Setups can be directly controlled via the select pins of the AUX socket (see Fig. 49), if “Scenario”

in the submenu “Scenario” is turned “OFF”. (In case “Scenario” is “ON” and you want to work with

the scenarios, please refer to paragraph 7.9.3, page 71.) The select pins allow you to switch in real

time between the setups 0 to 3.

INFORMATION

Setup 0 = working configuration

Please be aware that setup 0 is the working configuration and therefore is not programmed

additionally.

With the pins Select_I (AUX socket Pin 5) and Select_II (AUX socket Pin 8) it is possible to switch

rapidly between different sets of parameters. In their blank state, the select pins are on a high

level (pull-ups to 24 V). You have to switch them to low (Gnd) to select a different setup (see Fig.

51, page 69 and see Tab. 22, page 69). For additional information regarding the AUX socket, see

paragraph 8.3, page 119. You have to switch them before triggering.

Fig. 49: Select Pins

Fig. 50: Schematic of usage of select pins, example

Operation

VTK-TR-BA-072e-1 - User Manual MDS 358X Series

Fig. 51: Circuit diagram

INFORMATION

Select pins with other commands

Select pins will be checked for triggering via PLC interface, for the serial commands

VALVE:AOPEN and SVALVE:AOPEN (in the versions without parameters) and when pressing the

[trig]-key.

Setup Select_II (Pin 8) Select_I (Pin 5)

Setup 0

High

Setup 1

Low

High

Setup 2

High

Low

Setup 3

Low

Tab. 22: Select Pin settings for the setups

Operation

VTK-TR-BA-072e-1 - User Manual MDS 358X Series

7.9 Scenarios

The MDC does not only allow you to save setups of parameters, but also to define combinations

of setups, so called scenarios.

7.9.1 Basics about Scenarios

Each scenario consists of up to ten segments, each with a setup, a specific scenario delay and a

Number of Pulses (see Fig. 52). You can define up to four scenarios. You can only choose

between the setups 0, 1, 2 and 3. A maximum of ten segments can be chained together,

consisting of any possible combination of the four potential setups 0, 1, 2 and 3. As soon as you

enter “-” when selecting a segment, the chain ends. No further segments will be shown in the

menu. This is possible even for the first segment you select. In that case, the working

configuration (setup 0) would be executed instead of the scenario.

Fig. 52: Scenarios of an MDC

For each segment in a scenario, you can enter a Number of Pulses. For this segment, the number

then replaces the Number of Pulses saved with the original setup. The value can be between 1

and 32,000 or “infinite”. With “infinite”, the trigger signal defines the end.

The scenario delay marks the time span between two segments. It can be set in the range of

0.1 ms and 1000 ms.

Each scenario has a scenario PLC-stop, which is either “ON” or “OFF”. If it is “ON”, you can end the

scenario prematurely. The moment the trigger switches to “low”, the scenario ends. When it is

“OFF”, the trigger only affects a segment on “infinite” number of pulses. In that case, once the

trigger is switched to “low”, the system moves on to the scenario delay, followed by any

segments still to come. Unlike the “ON” situation, the scenario does not end immediately.

Scenarios can be controlled in two ways:

• via keypad (see next part)