©
E
v
o
lu
tion
C
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tr
o
ls
I
n
c
.
10
-S
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p
t-
2020
EVO/
™ECM-Modbus RTU
Series 2
Page 47
Application Guide
©2020 All Rights Reserved
Evolution Controls Inc.
San Diego, CA USA
EVO/ECM-ModBus Registers Coils
L
o
ca
tio
n
Coi
l/Fla
g
#
Fu
n
ctio
n
Valu
e/R
an
g
e
Deta
il
Read
Mu
lti
pl
e
Regi
s
te
r
W
ri
te
Mu
lti
pl
e
Regi
s
ter
Read
S
ing
le
Regi
s
te
r
W
ri
te
S
ing
le
Regi
s
te
r
Register 1
Low Byte
On/Off Control
Y
Y
Y
Y
Bit 0
1
Motor 1
Enable/Disable
1=Enable
0=Disable
Remote sets on/off to
reg 14 values on power
up & reset. Master
changes them to
dynamic values
Bit 1
2
Motor 2
Enable/Disable
1=Enable
0=Disable
Bit 2
3
Motor 3
Enable/Disable
1=Enable
0=Disable
Bit 3
4
Motor 4
Enable/Disable
1=Enable
0=Disable
Bit 4
5
Motor 1 Alarm
0=Norm, 1=Alarm
Alarm Flag resets when
motor is off. Alarm
inhibited for 20 seconds
after motor starts.
Bit 5
6
Motor 2 Alarm
0=Norm, 1=Alarm
Bit 6
7
Motor 3 Alarm
0=Norm, 1=Alarm
Bit 7
8
Motor 4 Alarm
0=Norm, 1=Alarm
High Byte
Status
Bit 0
9
External
Command
Flag
0= External Access
1=No Ext. Access
A global command
or reset clears this Flag.
Bit 1
10
Not Used
0
These Flags are
cleared on power up &
reset.
The Master may
set/clear them as
needed.
Bit 2
11
Not Used
0
Bit 3
12
Not Used
0
Bit 4
13
Not Used
0
Bit 5
14
Not Used
0
Bit 6
15
Communications
Timed Out
0
Sets when a timeout
occurs. Cleared by
Master
Bit 7
16
Reset Controller
1=Reset
Flag cleared
when reset
occurs
Register 2
Motor 1 Flow Index
Low Byte
Dynamic
integer 0-100
1-100% Flow
Index 0 =
Motor Off
Y
Y
Y
Y
High Byte
Not Used, reads as 0, write only 0's
Register 3
Motor 2 Flow Index
Low Byte
Dynamic
integer 0-100
1-100% Flow
Index 0 =
Motor Off
Y
Y
Y
Y
High Byte
Not Used, reads as 0, write only 0's
Register 4
Motor 3 Flow Index
Low Byte
Dynamic
integer 0-100
1-100% Flow
Index 0 =
Motor Off
Y
Y
Y
Y
High Byte
Not Used, reads as 0, write only 0's
Register 5
Motor 4 Flow Index
Low Byte
Dynamic
integer 0-100
1-100% Flow
Index 0 =
Motor Off
Y
Y
Y
Y
High Byte
Not Used, reads as 0, write only 0's
