DEV 1953 - Page 137

User Manual DEV 1953
 Copyright DEV Systemtechnik GmbH 2015-2017 137
Digital Interface Connector (Options 56 & 57)
Connector: Sub-D 37 (male)
Connector screws: UNC 4-40
Digital Interface Connector
Pin
Functionality
Pin
Functionality
Pin 1
Output: Module 1 (normally open)
Pin 20
Input: Module 1
Pin 2
Output: Module 2 (normally open)
Pin 21
Input: Module 2
Pin 3
Output: Module 3 (normally open)
Pin 22
Input: Module 3
Pin 4
Output: Module 4 (normally open)
Pin 23
Input: Module 4
Pin 5
Output: Module 5 (normally open)
Pin 24
Input: Module 5
Pin 6
Output: Module 6 (normally open)
Pin 25
Input: Module 6
Pin 7
Output: Module 7 (normally open)
Pin 26
Input: Module 7
Pin 8
Output: Module 8 (normally open)
Pin 27
Input: Module 8
Pin 9
Output: Module 9 (normally open)
Pin 28
Input: Module 9
Pin 10
Output: Module 10 (normally open)
Pin 29
Input: Module 10
Pin 11
Output: Module 11 (normally open)
Pin 30
Input: Module 11
Pin 12
Output: Module 12 (normally open)
Pin 31
Input: Module 12
Pin 13
Output: Module 13 (normally open)
Pin 32
Input: Module 13
Pin 14
Output: Module 14 (normally open)
Pin 33
Input: Module 14
Pin 15
Output: Module 15 (normally open)
Pin 34
Input: Module 15
Pin 16
Output: Module 16 (normally open)
Pin 35
Input: Module 16
Pin 17
Output: Module 16 (normally closed)
Pin 36
Input: In_Common
Pin 18
Output: Out_Common
Pin 37
Input: In_Common
Pin 19
Output: Out_Common
Note:
• Please refer to chapters 3.1.4, 3.2.26, & 5.4 for more information on the digital interface.
• The digital outputs (pins 1…17) are realized as dry relay contacts, pins 18 and 19 are the common pins
(Out_Common).
If a contact is open, it means that the corresponding module is switched to the primary input port ("In A"). If it
is closed (i.e. it has the same electrical potential as the common pins), the module is switched to the
secondary input port ("In B"). An exception is pin 17 that indicates the status of module 16 as a normally
closed contact, i.e. contradictory to pin 16.
• The digital inputs (pins 20…35) are realized with optocouplers with pins 36 & 37 as the common ground pins
(In_Common).
If the device is switched (from Local Mode or Auto Mode) to Remote Mode with Individual switching mode
activated and if no voltage is applied to a digital input, the corresponding module is switched to the primary
input port ("In A"). On the other hand, if a positive electrical potential (Option 56: nominal +24 V, 5.8 mA and
Option 57: nominal +12 V, 4.8 mA) is applied to a digital input, the corresponding module is switched to the
secondary input port ("In B").
If the device is switched to Remote Mode with Simultaneous switching mode activated, the potential on the
digital input of the first member of a group determines the switch position of the group.
If the device is in Remote Mode and Individual switching mode is activated, a rising slope on a digital input
forces the corresponding module to be switched to the secondary input port ("In B"); a falling slope switches
the module to the primary input port ("In A").
If the device is in Remote Mode and Simultaneous switching mode is activated, a rising slope on any (!) digital
input assigned to a module being member of a group forces the corresponding group to be switched to the
secondary input port ("In B"). A falling slope on any digital input assigned to a member of a group switches the
group to the primary input port ("In A").
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