Configuration of the M2C/M6C Programmable Contacts

General Description

The M2C and M6C programmable contacts may be used to signal pick-up value overruns or status changes:

M2C has two contacts, 1 and 2
M6C has six contacts, 1 to 6

The M2C/M6C programmable contacts can be configured:

locally via the HMI of the MicroLogic P/H trip unit
remotely via the communication interface

The remote configuration of each contact can be allowed or forbidden by the local configuration via the HMI of the MicroLogic P/H trip unit with a firmware version > 2009 AJ.

Remote Configuration Status

Address	Register	RW	X	Unit	Type	Range	A/E/P/H	Description
0x2647	9800	R	–	–	INT16U	0–1	P/H	Remote configuration status: 0 = indicates that remote configuration of the contact is not authorized (factory setting). 1 = indicates that remote configuration of the contact is authorized. Remote configuration status can be modified only locally via the HMI of MicroLogic P/H trip unit.

Address

Register

Unit

Type

Range

A/E/P/H

Description

0x2647

9800

–

INT16U

0–1

P/H

Remote configuration status:

0 = indicates that remote configuration of the contact is not authorized (factory setting).

1 = indicates that remote configuration of the contact is authorized.

Remote configuration status can be modified only locally via the HMI of MicroLogic P/H trip unit.

M2C/M6C Programmable Contact Registers

The settings of the M2C/M6C programmable contacts are in the contact registers:

Contact Number	Contact Addresses	Contact Registers
1	0x2648–0x264E	9801–9807
2	0x264F–0x2655	9808–9814
3	0x2656–0x265C	9815–9821
4	0x265D–0x2663	9822–9828
5	0x2664–0x266A	9829–9835
6	0x266B–0x2671	9836–9842

M2C/M6C Programmable Contact 1 Description

The order and the description of the M2C/M6C programmable contacts are the same as that of contact 1:

Address	Register	RW	X	Unit	Type	Range	A/E/P/H	Description
0x2648	9801	RW	–	–	INT16U	0–4	–	Output mode
							E/P/H	0 = normal (non-latching) mode (factory setting) Contact closed each time for as long as the assigned alarm remains active.
							P/H	1 = latching mode Contact closed for each assigned alarm and remains activated until the alarm is reset by the user (through the command interface or by a reset on the trip unit).
							P/H	2 = time delay mode Contact closed for a set time for each assigned alarm. It is opened at the end of the time delay whether the alarm is still active or not. The alarm must change status at least once to open the contact again.
							E/P/H	3 = forced to 1 The contact remains closed and is not controlled by the alarm status.
							E/P/H	4 = forced to 0 The contact remains open and is not controlled by the alarm status.
0x2649	9802	RW	10	s	INT16U	10– 3600	P/H	Contact activation time delay for time-delay mode Factory setting: 3600 (360 s)
0x264A–0x264D	9803– 9806	RW	–	–	OCTET STRING	0x00– 0x7F	P/H	Contact name in ASCII (A–Z and 0–9) using 4 registers Update via the trip unit not possible Factory setting: ‘set up !’
0x264E	9807	RW	–	–	INT16U	1000– 1031	E/P/H	Owner alarm number for the contact 1. Factory setting = 0x8000 (no owner)

Type of Programmable Contacts

Address	Register	RW	X	Unit	Type	Range	A/E/P/H	Description
0x2672	9843	R	–	–	INT16U	0–6	E/P/H	0 = none
							E/P/H	2 = M2C
							P/H	6 = M6C

Event Assignment to M2C/M6C Programmable Contacts

The M2C/M6C programmable contacts can be associated to a basic or advanced protection parameter event.

Depending on the protection parameter, a specific register can contain the programmable contact number which opens or closes at the end of the protection time delay (register 8763 as example).