Node Address Setting; Settings Of Baud Rate And Output Status - Hitachi HIDIC EH-150 Applications Manual

7.5

Node Address Setting

This section describes how to set the node addresses.
The node addresses are determined as follows, according to the settings of the rotary switches (see Figure 7.1).
Rotary switch on the left side
(×10)
0
0
0
•
•
1
1
•
•
6
6
When setting the rotary switches, turn off the power of the unit and disconnect the unit from the network.
The setting isn't reflected until the unit is reset.
Set the node addresses for the other devices in such a way that they do not overlap.
Example)
When the slave address is 1
0
9 1
8 2
7 3
6 4
5
×10
7.6

Settings of Baud Rate and Output Status

The baud rate is determined by bits 1 and 2 of the DIP switches (see Table 7.3) as follows.
Set the baud rate in such a way that all the devices on the network communicate at the same speed.
In addition, bit 4 of the DIP switches (see Table 7.4) is for setting whether the module should hold or clear the
output when a communication error occurs.
Bit 3 is reserved for use by the system; it should always be set to OFF.
1 2 3 4
O N
Table 7.4 Output Status setting
1 2 3 4
O N
Table 7.2 Node Address setting
Rotary switch on the right side
0 1
9
8 2
7 3
6 4
5
×1
Figure 7.1 Setting the Node Address
Table 7.3 Baud Rate setting
Baud Rate
125 kbps
250 kbps
500 kbps
Setting prohibited
Output status
Clear
Hold
Chapter 7 Discrete I/O Slave Unit Specifications
Node address
(×1)
0
1
2
•
•
0
1
•
•
2
3
When the slave address is 63
0 1
0 1
9
9
8
8 2
7
7 3
6
6 4
4
5
5
×10 ×1
Bit1 Bit2
OFF OFF
OFF
ON
OFF
ON
ON ON
Bit4
OFF
Default
ON
7-4
Default
0
1
2
•
•
10
11
•
•
62
63
2
3
Default