Quick-Check-PowerSaver Manifold 6 Port South-Tek Systems
Revision: 0
Revision Date: 8/2/17
Page 20 of 30
MODBUS Communication
Once the Quick-Check is provided with a static IP addressed and can be seen on the network, MODBUS
communication can be set up to retrieve real time data. The Quick-Check MODBUS Communication settings are as
follows:
-
Protocol: TCP
-
Local Port: 502
-
PLC Controller: Slave
See MODBUS addressing table below:
Table 2: MODBUS Addressing Table
STS Controller
(Unitronics)
SCADA
Units
Read/Write
Last Zone 1 O2% Purity
MI 21
40022 XXX.XX% O2
R
Last Zone 2 O2% Purity
MI 22
40023 XXX.XX% O2
R
Last Zone 3 O2% Purity
MI 23
40024 XXX.XX% O2
R
Last Zone 4 O2% Purity
MI 24
40025 XXX.XX% O2
R
Last Zone 5 O2% Purity
MI 25
40026 XXX.XX% O2
R
Last Zone 6 O2% Purity
MI 26
40027 XXX.XX% O2
R
N2 Alarm Setpoint
MI 6
40007 XXX.XX% O2
R/W
Start / Stop
MB 0
00001
R/W
Alarm 1 (Overall Zone Purity)
MB 94
00095
R
Alarm 2 (Flow Alarm)
MB 95
00096
R
Alarm 3 (Filter Change Status)
MB 96
00097
R
6
READING THE QUICK-CHECK ZONE STATUS
6.1
ZONE PURITY STATUS
The purity status of each of the zones can be determined by the color of
the zone letters in the “Zones out of Purity Spec:” row on the Home
screen show in Fi.
Red = Zone not within purity setpoint of the system
