Phase 3: synchronous communications – Yaskawa SI-ET3 User Manual
Page 22
7 Transmission Interface
22
YASKAWA ELECTRIC SIEP C730600 62B 1000-Series Option SI-ET3 Technical Manual
Phase 3: Synchronous communications
Watchdog timer faults in the communications frame are detected. If the DISCONNECT command is received, the phase
moves to phase 1. If a reception fault or a watchdog timer fault is detected, the phase moves to phase 2.
Available command is determined by communication phases. For details, refer to
and
Table 8 Main Command Communication Phases
Table 9 Sub-Command Communication Phases
Command
Code
[HEX]
Contents
Communication Phase
1
2
3
NOP
00
No Operation Command
–
{
{
PRM_RD
01
Read Parameter Command
–
{
{
PRM_WR
02
Write Parameter Command
–
{
{
ID_RD
03
Read ID Command
–
{
{
CONFIG
04
Setup Device Command
–
{
{
ALM_RD
05
Read Alarm or Warning Command
–
{
{
ALM_CLR
06
Clear Alarm or Warning Command
–
{
{
SYNC_SET
0D
Start Synchronous Communication Command
–
{
Δ
CONNECT
0E
Establish Connection Command
{
Δ
Δ
DISCONNECT
0F
Release Connection Command
{
{
{
INV_CTL
50
Inverter Operation Control Command
–
{
{
{: Can be executed
Δ: Ignored
–: Cannot be executed (phase error)
Command
Code
[HEX]
Contents
Communication Phase
1
2
3
NOP
00
No Operation Command
–
{
{
PRM_RD
01
Read Parameter Command
–
{
{
PRM_WR
02
Write Parameter Command
–
{
{
ALM_RD
05
Read Alarm or Warning Command
–
{
{
INV_IO
51
Drive I/O Control Command
–
{
{
{: Can be executed
Δ: Ignored
–: Cannot be executed (phase error)