The following variables contained in the GLOBAL_SYSTEM group of the variables table, have the fixed tag. The tag of system markers were divided into groups and subgroups, where:
Groups:
| • | CFW: reading and writing variables of the MVW3000G4 frequency inverter. |
Subgroups:
| • | STS: reading variable (status); |
| • | CMD: writing variable (command). |
Reading System Markers (Status)
Reading - Function Modbus 02 "Read Discrete Inputs"
Address |
Bit |
Modbus |
Tag |
Description |
Ladder |
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%SB0000 |
0 |
0 |
SYS_FREQ_2HZ |
Oscillator with frequency of 2 Hz |
%SB0000 |
1 |
1 |
SYS_PULSE_1SCAN |
Pulse during the first scan cycle |
%SB0000 |
2 |
2 |
SYS_FALSE |
Always in 0 |
%SB0000 |
3 |
3 |
SYS_TRUE |
Always in 1 |
Logical Status |
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%SB0002 |
1 |
17 |
CFW_STS_RUN_COMMAND |
The run motor command is active in the inverter |
%SB0002 |
2 |
18 |
CFW_STS_HMI |
Inverter at HMI mode (0-Remote, 1-HMI) |
%SB0002 |
3 |
19 |
CFW_STS_STO_ACTIVE |
STO active |
%SB0002 |
4 |
20 |
CFW_STS_QUICK_STOP |
Inverter is executing quick stop |
%SB0002 |
5 |
21 |
CFW_STS_SEC_RAMP_ACTIVE |
The inverter is configured to use the first or second ramp values (0-First, 1-Second) |
%SB0002 |
6 |
22 |
CFW_STS_CONFIG_MODE |
The inverter is in the configuration mode |
%SB0002 |
7 |
23 |
CFW_STS_ALARM_ACTIVE |
The inverter is in alarm condition |
%SB0003 |
0 |
24 |
CFW_STS_MOTOR_RUNNING |
The inverter is running the motor at the speed reference, or executing either the acceleration or the deceleration ramp |
%SB0003 |
1 |
25 |
CFW_STS_GENERAL_ENABLED |
General Enable is active and the inverter is ready to run the motor |
%SB0003 |
2 |
26 |
CFW_STS_FWD_REV_DIRECTION |
The motor is running in the reverse or forward direction (0-Reverse, 1-Forward) |
%SB0003 |
3 |
27 |
CFW_STS_JOG_ACTIVE |
The JOG function is active |
%SB0003 |
4 |
28 |
CFW_STS_LOC_REM_MODE |
The inverter is in local or remote mode (0-Local, 1-Remote) |
%SB0003 |
5 |
29 |
CFW_STS_UNDERVOLTAGE |
The inverter is in undervoltage |
%SB0003 |
6 |
30 |
CFW_STS_PID_AUTO |
PID Mode (0-Manual, 1-Auto) |
%SB0003 |
7 |
31 |
CFW_STS_FAULT_ACTIVE |
The inverter has detected a fault |
HMI keys |
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%SB0006 |
0 |
48 |
CFW_STS_KEY_ESC |
ESC key was pressed |
%SB0006 |
1 |
49 |
CFW_STS_KEY_UP |
UP key was pressed |
%SB0006 |
2 |
50 |
CFW_STS_KEY_HELP |
HELP key was pressed |
%SB0006 |
3 |
51 |
CFW_STS_KEY_DIRECTION |
DIRECTION key was pressed |
%SB0006 |
4 |
52 |
CFW_STS_KEY_DOWN |
DOWN key was pressed |
%SB0006 |
5 |
53 |
CFW_STS_KEY_LOC_REM |
LOC/REM key was pressed |
%SB0006 |
6 |
54 |
CFW_STS_KEY_START |
START (I) key was pressed |
%SB0006 |
7 |
55 |
CFW_STS_KEY_JOG |
JOG key was pressed |
%SB0007 |
0 |
56 |
CFW_STS_KEY_STOP |
STOP (O) key was pressed |
%SB0007 |
1 |
57 |
CFW_STS_KEY_RIGHT |
RIGHT key was pressed |
%SB0007 |
2 |
58 |
CFW_STS_KEY_ENTER |
ENTER key was pressed |
%SB0007 |
3 |
59 |
CFW_STS_KEY_LEFT |
LEFT key was pressed |
Reading - Function Modbus 04 "Read Input Registers"
Speed |
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%SW0200 |
-- |
12100 |
CFW_STS_MOTOR_SPEED_RPM |
Motor speed in rpm |
%SW0202 |
-- |
12101 |
CFW_STS_MOTOR_SPEED_13BITS |
Motor speed in 13 bits (8192) |
%SW0204 |
-- |
12102 |
CFW_STS_MOTOR_SYNC_SPEED |
Motor synchronous speed in rpm |
%SW0206 |
-- |
12103 |
CFW_STS_SPEED_REFERENCE |
Speed reference after ramp in rpm |
%SW0208 |
-- |
12104 |
CFW_STS_SPEED_REFERENCE_13BITS |
Speed reference after ramp in 13 bits |
Alarm and Fault |
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%SW0210 |
-- |
12105 |
CFW_STS_PRES_ALARM |
Alarm number that may be present in the inverter |
%SW0212 |
-- |
12106 |
CFW_STS_PRES_FAULT |
Fault number that may be present in the inverter |
Current and Torque |
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%SW0214 |
-- |
12107 |
CFW_STS_RATED_CURRENT |
Inverter rated current (HD) in A (x10) |
%SW0216 |
-- |
12108 |
CFW_STS_MOTOR_CURRENT |
Motor current without filter in A (x10) |
%SW0218 |
-- |
12109 |
CFW_STS_MOTOR_TORQUE |
Motor torque without filter in % (x10) |
Writing / Reading System Markers (Command)
Reading - Function Modbus 01 "Read Coils"
Writing - Function Modbus 05 "Write Single Coil" and 15 "Write Multiple Coils"
Address |
Bit |
Modbus |
Tag |
Description |
Logical Command |
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%CB0008 |
0 |
64 |
CFW_CMD_RUN_STOP |
Run the motor according to the speed reference value (0-Stop, 1-Run) |
%CB0008 |
1 |
65 |
CFW_CMD_GENERAL_ENABLE |
Enables the inverter allowing the motor operation (0-Disable, 1-Enable) |
%CB0008 |
2 |
66 |
CFW_CMD_SPEED_DIRECTION |
The motor runs in the direction indicated by the speed reference (0-Reverse, 1-Forward) |
%CB0008 |
3 |
67 |
CFW_CMD_JOG |
Enables the JOG function (0-Disable, 1-Enable) |
%CB0008 |
4 |
68 |
CFW_CMD_R2_REM_MODE |
Selects the inverter remote operation mode (0-R1, 1-R2) |
%CB0008 |
5 |
69 |
CFW_CMD_SECOND_RAMP |
Selects the ramp to accelerate and decelerate the motor (0-First, 1-Second) |
%CB0008 |
6 |
70 |
CFW_CMD_QUICK_STOP |
- |
%CB0008 |
7 |
71 |
CFW_CMD_FAULT_RESET |
Executes the fault reset command |