Modbus – IAI America ROBO Cylinder Series User Manual

Page 68

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5. Modbus RTU

60

Modbus

FC

Function

Symbol

Function Summary

Combination

with PIO

Broad-

cast Page

03

Controller status

signal read 2

(device status 2)

(Operation preparation 1

status)

DSS2

This function reads the following 15 statuses:

[1] Enable

[2] Load output judgment (check-range

load current threshold)

[3] Torque level (load current threshold)

[4] Teaching mode (normal/teaching)

[5] Position data load (normal/complete)

[6] Jog+ (normal/command active)

[7] Jog- (normal/command active)

[8] Position complete 7

[9] Position complete 6

[10] Position complete 5

[11] Position complete 4

[12] Position complete 3

[13] Position complete 2

[14] Position complete 1

[15] Position complete 0

{

90

03

Controller status

signal read 3

(extended device status)

(Operation preparation 2

status)

DSSE

This function reads the following 9 statuses:

[1] Emergency stop (emergency stop input

port)

[2] Motor voltage low

[3] Operation mode (AUTO/MANU)

[4] Home return

[5] Push-motion operation in progress

[6] Excitation detection

[7] PIO/Modbus switching

[8] Position-data write completion status

[9] Moving

{

92

03

Controller status

signal read 4

(System status)

(Controller status)

STAT

This function reads the following 7 statuses:

[1] Automatic servo OFF

[2] Nonvolatile memory being accessed

[3] Operation mode (AUTO/MANU)

[4] Home return completion

[5] Servo ON/OFF

[6] Servo command

[7] Drive source ON (normal/cut off)

{

94

03 Current speed read

VNOW This function reads the current actuator

speed in units of 0.01 mm/sec.

{

96

03 Current read

CNOW This function reads the motor-torque current

command value of the actuator in mA.

{

98

03 Deviation read

DEVI This function reads the deviation over a 1-ms

period in pulses.

{

100

03 Total power on time

read

STIM This function reads the total time in msec

since the controller power was turned on.

{

102

03

Special input port

input signal status

read

(Sensor input status)

SIPM

This function reads the following 8 statuses:

[1] Command pulse NP

[2] Command pulse PP

[3] Mode switch

[4] Belt breakage sensor

[5] Home check sensor

[6] Overtravel sensor

[7] Creep sensor

[8] Limit sensor

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