MEWTOCOL Master/Slave Communication
5.3.2 RECV Command (When MEWTOCOL is Used)
Command format
Items Settings
i Specify the operation unit. US / SS
S1 Specify the partner station no.
1 - 64 (Note 1)
S2
Specify the device initial address of the source
node data area in the partner node.
(Note 2) (Note 3)
0 - 65535 0 - 99999
n Specify the No. of sent data. (Note 4)
1 - 2038 words
or 1 bit (Note 5)
1 - 507 words
or 1 bit
D1
Specify the device initial address of the receiver
node data area in the source node.
(Note 2)
D2
Specify the device area in the source node to save
the execution result code (one word).
(Note 6)
(Note 1) Specify "1" for connection between FP7 units. The receiver is specified by IP address.
(Note 2) Transmission methods vary by the type of device to be specified for the operands [S2] and [D1].
Device to be specified for [S2] and [D1]
Transmission
16 bit device: WX, WY, WR, WL, DT, LD Register transmission
1 bit device: X, Y, R, L, DT,n, LD, n Bit transmission
(Note 3) Bit device DT, n and LD, n cannot be specified for the header of the sender data in the partner node.
(Note 4) The No. of sent data is on a word basis for register transmission, and on a bit basis for bit transmission.
(Note 5) The maximum number of words vary by settings of the MEWTOCOL communication type for user connection.
Connection settings: Setting of the
MEWTOCOL communication type
Maximum no. of words
Do not connect with FP2 ET-LAN 2038 words
Connect with FP2 ET-LAN 1020 words
(Note 6): Devices that can be specified for [D2] are: WX, WY, WR, WL, DT, LD. Saved as one word in the specified area.
0: Normal completion
1: Communication port is being used for master communication
2: Communication port is being used for slave communication
3: No. of master communication commands that can be used simultaneously has been exceeded
4: Sending timeout
5: Response reception timeout
6: Received data error
5-6
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