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5.4.9.3 Instance definitions for four-port devices (GW.../4DB9)
Input assembly instances: Input assembly instances are grouped into one continuous
array between the instances. One or more input instances may be read with one I/O
connection. For example, if addressing instance 101, all input instances for both serial and
socket data, 101, 102, 103, 104, 105, 106, 107, and 108, may be read in one connection.
The length of the read (input) connection may range from 1 to the total length for all input
instances. Multiple controllers may access the input assembly instances simultaneously.
Table 5-40 Output assembly instance attributes
Assembly
instance number
Name Data type Data value Access rule
109 Transmit data to serial
ports 1 to 2
Transmit data to socket
ports 1 to 2
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Set
110 Transmit data to serial
port 2
Transmit data to socket
ports 1 to 2
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Set
113 Transmit data to socket
ports 1 to 2
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Set
114 Transmit data to socket
port 2
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Set
Table 5-41 Input assembly instance attributes
Assembly
instance number
Name Data type Data value Access rule
101 Receive data from serial
port 1
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Get
102 Receive data from serial
port 2
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Get
103 Receive data from serial
port 3
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Get
104 Receive data from serial
port 4
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Get
105 Receive data from socket
port 1
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Get
106 Receive data from socket
port 2
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Get
107 Receive data from socket
port 3
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Get
108 Receive data from socket
port 4
BYTE array length = (4 +
maximum RX packet size)
0 - 255 Get