Node Status Area For Master Function - Mitsubishi Electric QJ71DN91 User Manual

3 SPECIFICATIONS

3.4.4 Node status area for master function

3 - 28
The operation status of each slave node is stored in this area.
(1) Node Configuration Status (address: 01B4
The parameter setting status of each slave node is stored.
• When the corresponding bit is on: Parameters have already been set.
• When the corresponding bit is off: Parameters have not been set.
Table 3.19 Node No. corresponding to each bit in Node Configuration Status
Buffer memory address
(Hex.)
01B4
H
01B5
H
01B6
H
01B7
H
(a) Bit on timing
When a slave node executes the following, and when the parameter check
is completed successfully, the bit corresponding to the slave node turns on.
• Starting I/O communication (Refer to Section 3.2.2 (2).)
• Saving master function parameters to flash ROM (Refer to Section 3.3.2
(6).)
(b) Bit off timing
1) Remove settings of a slave node from master function parameters and
execute the following:
• Starting I/O communication (Refer to Section 3.3.2 (6).)
• Saving master function parameters to flash ROM (Refer to Section
3.3.2 (6).)
When the parameter check is completed successfully, the bit
corresponding to the slave node turns off.
2) When the master node is powered on from off, or when the CPU
module is reset, all bits turn on.
(2) Node Communication Status (address: 01BC
447)
The I/O communication status of each slave node is stored.
While I/O Communicating (X01) is off, all bits are off.
• When the corresponding bit is on: Communication in progress
• When the corresponding bit is off: Communication stopped
Table 3.20 Node No. corresponding to each bit in Node Communication Status
Buffer memory address
(Hex.)
01BC
H
01BD
H
01BE
H
01BF
H
H
Node No. corresponding to each bit
Bit 15 Bit 14
Node 15 Node 14
Node 31 Node 30
Node 47 Node 46
Node 63 Node 62
Node No. corresponding to each bit
Bit 15 Bit 14
Node 15 Node 14
Node 31 Node 30
Node 47 Node 46
Node 63 Node 62
MELSEC-Q
to 01B7 /436 to 439)
H

Bit 1 Bit 0

Node 1 Node 0

Node 17 Node 16

Node 33 Node 32

Node 49 Node 48
to 01BF /444 to
H H

Bit 1 Bit 0

Node 1 Node 0

Node 17 Node 16

Node 33 Node 32

Node 49 Node 48
3 - 28