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SafeGuard Controller User Manual
MAN-0115 Rev 0
SECTION 5
5.0 MODBUS RS-485 PORTS
The SafeGuard Controller is equipped with
Master
(COMM 1), and
Slave
(COMM 2)
,
modbus RTU ports. Port configurations are described in sections 2.2 and 2.3 of this
manual. Section 5.0 defines register locations of data available via the SafeGuard
Controller’s slave port.
5.1 MODBUS SLAVE REGISTER LOCATIONS
The following tables describe the SafeGuard Controller’s modbus slave database. Any
portion of this data may be read by a modbus master device such as a PC, PLC or DCS.
Since the modbus port is RS-485, many SafeGuard Controllers may be multi-dropped
onto the same cable.
Memory Integer ASCII:
Notes: ASCII may be read 2 characters at a time or in strings using a multiple register read.
Sixteen character channel tag name:
Type
Channel
First
Last
Read FC
Write FC Notes
Channel Tag
1
40401
40408
3
n/a
2 characters per register
Channel Tag
2
40409
40416
3
n/a
2 characters per register
Channel Tag
3
40417
40424
3
n/a
2 characters per register
Channel Tag
4
40425
40432
3
n/a
2 characters per register
Channel Tag
5
40433
40440
3
n/a
2 characters per register
Channel Tag
6
40441
40448
3
n/a
2 characters per register
Channel Tag
7
40449
40456
3
n/a
2 characters per register
Channel Tag
8
40457
40464
3
n/a
2 characters per register
Channel Tag
9
40465
40472
3
n/a
2 characters per register
Channel Tag
10
40473
40480
3
n/a
2 characters per register
Channel Tag
11
40481
40488
3
n/a
2 characters per register
Channel Tag
12
40489
40496
3
n/a
2 characters per register
Channel Tag
13
40497
40504
3
n/a
2 characters per register
Channel Tag
14
40505
40512
3
n/a
2 characters per register
Channel Tag
15
40513
40520
3
n/a
2 characters per register
Channel Tag
16
40521
40528
3
n/a
2 characters per register
Six character Eunits Tag:
Type
Channel
First
Last
Read FC
Write FC Notes
EUNITS 1 40529
40531 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 2 40532
40534 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 3 40535
40537 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 4 40538
40540 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 5 40541
40543 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 6 40544
40546 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 7 40547
40549 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 8 40550
40552 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 9 40553
40555 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 10
40556
40558 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 11
40559
40561 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 12
40562
40564 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 13
40565
40567 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 14
40568
40570 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 15
40571
40573 3 n/a
2
characters
per register; 3 registers per channel
EUNITS 16
40574
40576 3 n/a
2
characters
per register; 3 registers per channel
