990XCP98000 SQUARE D, 990XCP98000 Datasheet - Page 253

• Manufacturer Part Number: 990XCP98000
• Description: QUANTUM CPU BATTERY FOR S
• Manufacturer: SQUARE D

Specifications of 990XCP98000

• Rohs Compliant: YES
• Battery Capacity: 1800mAh
• Battery Technology: Lithium
• Battery Voltage: 3V
• Battery Terminals: Connector
• Weight: 0.12lb

Performance
CT
Ethernet TCP/IP
Hub
Input
(continued)
RT
Output
Manager
Device 1
Device 2
Modicon
automation platform
System approach
Ethernet TCP/IP network performance
The response time RT includes the time between taking account of information from a
remote input and updating the state of a remote output. It includes the processing time in
the PLC.
This response time RT consists of the following parameters:
v
electrical transit time at the input/output (TMod depends on the device, usually between
1 and 8 ms).
v
(0.3 ms x number of devices scanned), equivalent to at least the configured scan time.
As TIOS is executed in parallel with the PLC cycle, it can be hidden from the viewpoint of
the response time RT).
v
v
= 0.05 ms at 10 Mbps and 0.005 ms at 100 Mbps).
The response time RT can be estimated using the following 3 formulae:
b
RT
(TMod In + 0) x TIOS In + (Tnet + N) x CycleT + (0 x TIOS Out) + Tnet + TMod Out
b
RT
(TMod In + 0.5) x TIOS In + (Tnet + N) x CycleT + (0.5 x TIOS Out) + Tnet + TMod Out
b
RT
The TMod In and TMod Out response times are shown below:
Momentum
Momentum 170 ENT 110 01
Advantys STB STB NIP 2212
The TIOS In/TIOS Out times measured between 2 scanning cycles (network with
switches) are shown below.
The number N of CPU cycles is shown below:
Time (ms)
25
20
15
10
Premium
TSX P57 26/3634M and TSX P57 26/28/36/4823M
All Premium processors with TSX ETY 4103/5103 modules
All Quantum processors with 140 NOE 771 01/771 11 modules
Premium processors TSX P57 46/5634M
Quantum processors 140 CPU 651 50/60
Application response time
I/O Scanning service response time
Distributed I/O
5
0
TMod In and TMod Out: Response time of the read/written device, excluding the
TIOS In and TIOS Out: Time between 2 read/write operations on the same device
CycleT: PLC cycle time.
TNet: Propagation time on the network (depends on the application, but generally TNet
RT
RT
RT
min
typic
max
max
min
typic
1
=
Input
= TMod In + TIOS In + (Tnet + N) x CycleT + TIOS Out + Tnet + TMod Out
=
, minimum response time with TIOS hidden and 1 PLC cycle:
, maximum response time with TIOS not hidden:
™
, typical response time with 0.5 TIOS hidden:
TMod In
processors
™
170 ENT 110 02
5
10
®
TIOS In
Quantum
20
30
TNet
Number N of CPU cycles Min.
Number of devices scanned
Response Time
TMod In
TMod Out
TMod In or TMod Out
TMod In or TMod Out
Response time (RT)
(continued)
40
N x CycleT
50
™
60
TIOS Out
Min.
1 ms
5 ms
4 ms
2 ms
2
1
TNet
Typical
1 ms
5 ms
6 ms
3 ms
Typical
2.5
1
TMod Out
Max.
1 ms
5 ms
8 ms
4 ms
Max.
3
2
Output
6/35
10
10
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9