Who's Online Now
0 members (), 34 guests, and 3 robots.
Key: Admin, Global Mod, Mod
September
S M T W T F S
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30
Newest Members
Josephs, Javy89, Ropeguy67245, kywewa, Ingvar
10,040 Registered Users
Forum Statistics
Forums13
Topics7,385
Posts40,939
Members10,040
Most Online3,137
Apr 9th, 2026
Previous Thread
Next Thread
Print Thread
Joined: Apr 2016
Posts: 3
C
stranger
stranger
C Offline
Joined: Apr 2016
Posts: 3
My tool won't communicate. I replaced the IOA board and the 186o board and chip.
Also the board doesn't seem to be putting any power to door operators or starter or even the C.O.P. battery is new and checked tool on another tac 20.

Joined: Jan 2014
Posts: 736
R
old hand
old hand
R Offline
Joined: Jan 2014
Posts: 736
Did you happen to go from a 16 bit tac20 to a 32 bit? Does your IMS support 32 bit and have a CPUA Icon?

Joined: Mar 2011
Posts: 153
member
member
Joined: Mar 2011
Posts: 153
Yes, what version IMS are you running. 2.3.x is 16 bit. 2.4.x and above is 32.

Joined: Dec 2012
Posts: 25
S
newbie
newbie
S Offline
Joined: Dec 2012
Posts: 25
What port do you have it plugged into? Use the 232 not the 485.
Tac 20's are 16 bit, should work with regular IMS.

Joined: Dec 2015
Posts: 1,766
Likes: 11
I
ElevatorPractitioner
ElevatorPractitioner
I Offline
Joined: Dec 2015
Posts: 1,766
Likes: 11
There are no 32 bit TAC20s. If you replaced the CPU, you need to put software in through Hyperterminal, it doesn't even know it's an elevator.

Joined: Mar 2015
Posts: 80
W
journeyman
journeyman
W Offline
Joined: Mar 2015
Posts: 80
Raise power suppy voltage to 25.5 vdc and yeah u need to load software

Last edited by Whadafack; 05/01/16 03:09 AM.

Link Copied to Clipboard
Photo Gallery
service tool laptop
service tool laptop
by dunkdadrunk, February 4
rip orona
rip orona
by epic_ecodisc, January 7
what controller is this?!
what controller is this?!
by Alex_ELMAN, December 4
HW PM
HW PM
by Chris, January 13
PECCO PH5000 Overspeed Governor
PECCO PH5000 Overspeed Governor
by stankap, September 24
Drive sheave
Drive sheave
by jkh, October 10
The best helper.
The best helper.
by Adrian, August 8
Powered by UBB.threads™ PHP Forum Software 8.0.0
(Release build 20240826)
Responsive Width:

PHP: 8.3.33 Page Time: 0.022s Queries: 26 (0.005s) Memory: 3.0187 MB (Peak: 3.5925 MB) Data Comp: Off Server Time: 2026-09-20 23:58:01 UTC
Valid HTML 5 and Valid CSS