Digital Input Settings

Description

The TeSys Tera system supports maximum 32 digital inputs:

Four digital inputs on the LTMT main unit.
Up to 28 digital inputs with LTMT expansion modules.

Each digital input setting is made up of three registers. The order and the description of the settings for digital input 1 are valid for the other digital inputs.

Address	Register	No.	Description	DI location
0x1194	4501	3	Digital input 1 settings	DI1 on LTMT main unit
0x1197	4504	3	Digital input 2 settings	DI2 on LTMT main unit
0x119A	4507	3	Digital input 3 settings	DI3 on LTMT main unit
0x119D	4510	3	Digital input 4 settings	DI4 on LTMT main unit
0x11A0	4513	3	Digital input 5 settings	DI on LTMT expansion module
0x11A3	4516	3	Digital input 6 settings	DI on LTMT expansion module
0x11A6	4519	3	Digital input 7 settings	DI on LTMT expansion module
0x11A9	4522	3	Digital input 8 settings	DI on LTMT expansion module
0x11AC	4525	3	Digital input 9 settings	DI on LTMT expansion module
0x11AF	4528	3	Digital input 10 settings	DI on LTMT expansion module
0x11B2	4531	3	Digital input 11 settings	DI on LTMT expansion module
0x11B5	4534	3	Digital input 12 settings	DI on LTMT expansion module
0x11B8	4537	3	Digital input 13 settings	DI on LTMT expansion module
0x11BB	4540	3	Digital input 14 settings	DI on LTMT expansion module
0x11BE	4543	3	Digital input 15 settings	DI on LTMT expansion module
0x11C1	4546	3	Digital input 16 settings	DI on LTMT expansion module
0x11C4	4549	3	Digital input 17 settings	DI on LTMT expansion module
0x11C7	4552	3	Digital input 18 settings	DI on LTMT expansion module
0x11CA	4555	3	Digital input 19 settings	DI on LTMT expansion module
0x11CD	4558	3	Digital input 20 settings	DI on LTMT expansion module
0x11D0	4561	3	Digital input 21 settings	DI on LTMT expansion module
0x11D3	4564	3	Digital input 22 settings	DI on LTMT expansion module
0x11D6	4567	3	Digital input 23 settings	DI on LTMT expansion module
0x11D9	4570	3	Digital input 24 settings	DI on LTMT expansion module
0x11DC–0x11F1	4573–4594	3	–	Reserved

The settings of the four digital inputs on the LTMT main unit corresponds to the settings of digital input 1 to digital input 4.

The settings of digital inputs on a LTMT expansion module are defined according to the expansion unit configuration.

Example: If the TeSys Tera system is composed of:

One LTMT main unit.
One LTMTIN42 BD/FM expansion unit with four digital inputs, configured as expansion unit 1.

Then,

Digital input 1 settings to Digital input 4 settings are valid for DI1 to DI4 on the LTMT main unit.
Digital input 5 settings to Digital input 8 settings are valid for DI5 to DI8 on the LTMTIN42 expansion unit.

Digital Input 1 Settings

The table lists the registers for the digital input settings.

Address	Register	No.	Function code	RW	X	Unit	Type	Range	Default value	Svd	Description
0x1194	4501	1	0x03, 0x06, 0x10	RW	1	–	UINT16	0: Active high 1: Active low	0	Y	Digital input 1 trigger type
0x1195	4502	1	0x03, 0x06, 0x10	RW	1	–	UINT16	0–38 (step 1)	4	Y	Digital input 1 input source
0x1196	4503	1	0x03, 0x06, 0x10	RW	1	ms	UINT16	1–60000 (step 10)	10	Y	Digital input 1 validation time

Address

No.

Function code

Unit

Type

Range

Default value

Svd

Description

0x1194

4501

0x03,
0x06,
0x10

–

UINT16

0: Active high

1: Active low

Digital input 1 trigger type

0x1195

4502

0x03,
0x06,
0x10

–

UINT16

0–38
(step 1)

Digital input 1 input source

0x1196

4503

0x03,
0x06,
0x10

UINT16

1–60000
(step 10)

Digital input 1 validation time

DI Input Source

The table lists the input source for the digital input settings.

Register value	DI input source
0	Other
1	Trip Reset DI
2	Breaker Close DI
3	Breaker Open DI
4	Local-START> DI
5	Local-START>> DI
6	Local-STOP DI
7	Local-START< DI
8	Local-START<< DI
9	Remote-START> DI
10	Remote-START>> DI
11	Remote-STOP DI
12	Remote-START< DI
13	Remote-START<< DI
14	Interlock 1
15	Interlock 2
16	Interlock 3
17	Interlock 4
18	Interlock 5
19	Interlock 6
20	Interlock 7
21	Interlock 8
22	Interlock 9
23	Interlock 10
24	Interlock 11
25	Interlock 12
26	Contactor Open DI
27	Run DI
28	Block Input
29	Logic Test DI
30	Mode Selection 1
31	Mode Selection 2
32	Speed Change
33	Forced Start
34	Forced Stop
35	Self Test without Trip
36	Self Test with Trip
37	Reserved
38	None