Honeywell Excel 100C Installation Instructions Manual page 17

Pull-Up Resistor Handling
10 V
device
voltage hardware
XF521,
XF521A
10 V
XF526
XFL521,
XFL521A/B
optional
switch-off
Smart I/O
5 V
XFC
XL20
optional
XL50
switch-off
10 V
XL100,
XL100A
XL100B
optional
switch-off
XL100C
(1
controller firmware ≥ 2.03;
(2
controller firmware ≥ 2.02;
(3
controller firmware ≥ 2.03 (local/shared mode), CARE ≥ 5.00.01 (open mode);
(4
CARE ≥ 5.00.01;
(5
controller firmware < 2.04;
(6
controller firmware < 2.04 (local/shared mode), CARE ≥ 5.01.xx (open mode);
(7
CARE ≥ 5.01.xx;
(8
Assigning "@" as first digit of input characteristic name (e.g.: "@0-10V") in CARE text editor disables the pull-up resistor.
Case 1
10 V
24.9 k Ω
(pull-up)
A
D
150 kΩ
49.9 kΩ
pull-up
de- configured
activated by DIP
(8
by @ switch
fixed NO
fixed NO
(3
YES
(4
NO
YES
fixed NO
(2
YES
fixed
NO
YES
(1
YES NO
EXCEL 100C INSTALLATION INSTRUCTIONS
Case 2
5 V
24.9 k Ω
(pull-up)
A
D
150 kΩ
49.9 kΩ
Fig. 1. Input circuit diagram
Table 6. Pull-up resistor handling
configured activated
by plug-in for DI on AI
YES
NO
YES
config.
YES
YES
YES
YES
NO
YES
configurable
YES
17
Case 3
18.2 k Ω
(pull-up)
A
D
100 kΩ
100 kΩ
load-free voltage
input
with NTC
circuit
or low-
diagram
impedance
(Fig. 1)
input
case 2
8.89 V
case 2
(6
case 1
(7
case 3 5 V
case 2
(5
case 1
8.89 V
case 2
case 1
(5
EN1R-0144GE51 R1007
for voltage
input or
high-
impedance
input
8.89 V
8.89 V
0 V
8.89 V
0 V
8.89 V
0 V