Delta AH500 - Page 145

AH500 Hardware and Operation Manual
2-112
2. Definitions of the pins in the PROFIBUS-DP port
PIN
PIN name
Description
1
--
N/C
2
--
N/C
3
RxD/TxD-P
Receiving/Sending data (P (B)
)
4
--
N/C
5
DGND
Data reference potential (C)
6
VP
Supply positive voltage
7
--
N/C
8
RxD/TxD-N
Receiving/Sending data (N (A))
9
--
N/C
3. Setting a PROFIBUS node address by means of the address knobs
The address knobs of AHRTU-PFBS-5A are used for setting the node address of AHRTU-PFBS-5A
on a PROFIBUS-DP network. There are two address knobs. They are a knob corresponding to x16
0
,
and a knob corresponding to x16
1
. The range for one address knob is 0~F.
The range for setting the node address is described below.
Address Definition
H’1~H’7D Valid PROFIBUS address
H’0 or H’7E~H’FF Invalid PROFIBUS address
Example: If users need to set the node address of AHRTU-PFBS-5A to 26 (decimal value), they have
to turn the knob corresponding to x16
1
to “1” and the knob corresponding to x16
0
to “A”.
26 (decimal value)=1A (hexadecimal value)=1x16
1
+Ax16
0
.
Points for attention:
 If users set the node address of AHRTU-PFBS-5A when AHRTU-PFBS-5A is not supplied with
power, they have to power AHRTU-PFBS-5A after the node address of AHRTU-PFBS-5A is set.
 If users change the node address of AHRTU-PFBS-5A when AHRTU-PFBS-5A is powered, the
change will not take effect immediately after the node address of AHRTU-PFBS-5A is changed,
and it will take effect after the users cut off the power supplied to AHRTU-PFBS-5A and then
power AHRTU-PFBS-5A again.
 To prevent the address knobs on AHRTU-PFBS-5A from being scratched, please carefully use a
slotted screwdriver to rotate the address knobs on AHRTU-PFBS-5A.
1
5
9
6
0
x16
1
x16