Chapter 11 : registers, Qx751resources, Overview – Horner APG QX751 OCS User Manual
Page 61: Resource limits, Chapter 11, Chapter 11: registers
MAN0890-02-EN
CH. 11
August 20, 2009
Page 61 of 96
ECN # 979
CHAPTER 11: REGISTERS
11.1 QX751Resources
11.1.1
Overview
This section defines the resource limits that a programmer needs to know when writing a program
using the QX751. The QX751combines operator interface (display and keypad), local and remote I/O
(analog and digital), networking, and controller, into a single product. In addition, the QX751 has
graphical capabilities. The controller portion of the QX751 products is programmed in ladder logic via
the Windows-based Cscape (Control Station Central Application Programming Environment)
package.
11.1.2 Resource
Limits
Table 11.1 – Resource Limits
Resource
QX451
QX451-16
QX551
QX551-16
QX651
QX651-16
QXxxx with
BP41*
QXxxx with
BP43*
%S 1
bit
13
%SR 16
bit
192
%T 1
bit
2048
%M 1
bit
2048
%R 16
bit
9999
%K 1
bit
7
%D 1
bit
1023
%I 1
bit
2048
%Q 1
bit
2048
%AI 16
bit
512
%AQ 16
bit
512
%IG 1
bit
64
%QG 1
bit
64
%AIG 16
bit
32
%AQG 16
bit
32
Ethernet
Ping, EGD, SRTP, Modbus TCP Slave, Ethernet IP, FTP, or HTTP @ 10 MBd or 100 MBd
CsCAN
N/A
125 kBd, 250 kBd, 500 kBd, or
1 MBd
Serial Ports
3 RS-232 / RS-485 Ports. Software Selectable.
IDs Per CsCAN
Network
N/A
64 w/o repeat (253 w/ 3 repeaters)
SmartStack
Modules
N/A
2 slots (22 with
FOX)
4 slots (24 with
FOX)
Keypad
7 user-defined Function keys and a System key
Display Type
800 x 600 TFT (LCD with Backlight)
Display Size
8.4” 10.4” 12.1”
N/A
Display Screen
Dimensions
6.7”W x 5”H
(170 x 128mm)
8.3“W x 6.2“H
(211 x 159mm)
9.7“W x 7.3“H
(246 x 185mm)
N/A
Screen
Memory
8 MB
Colors
32,000
User Screens
1023
Objects Per
User Screen
300
Ladder Code
256 kB