Yokogawa Data Acquisition with PID Control CX2000 User Manual

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App-47

IM 04L31A01-17E

App

Appendix

*8 The control data alarm statuses of registers D7614 and D7615 indicate the statuses of alarm numbers 1

to 4 of each loop using the bit status of the register (16 bits).If the status of alarm numbers 1 to 4 of each
loop is ON, the corresponding bit is set to 1 regardless of the alarm type. When the data is read using
ladder communications, the 16-bit signed data converted to BCD is returned. Therefore, the host
computer must convert the value to 16-bit signed integer. If registers D7614 and D7615 are read on a 0-
loop model or if register D7615 is read on a two-loop model or four-loop model (or when four loops are
selected in the “Basic setting” on a six-loop model), “0” is returned.

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Alarm number 1 of loop 1
Alarm number 2 of loop 1
Alarm number 3 of loop 1
Alarm number 4 of loop 1
Alarm number 1 of loop 2
Alarm number 2 of loop 2
Alarm number 3 of loop 2
Alarm number 4 of loop 2
Alarm number 1 of loop 3
Alarm number 2 of loop 3
Alarm number 3 of loop 3
Alarm number 4 of loop 3
Alarm number 1 of loop 4
Alarm number 2 of loop 4
Alarm number 3 of loop 4
Alarm number 4 of loop 4

0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON
0: Alarm OFF, 1: Alarm ON

Bit

Bit Status and Alarm Status

Corresponding Alarm

Bit Configuration of Register D7614 (for loops 1 to 4)

0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Alarm number 5 of loop 1
Alarm number 5 of loop 2
Alarm number 5 of loop 3
Alarm number 5 of loop 4
Alarm number 6 of loop 1
Alarm number 6 of loop 2
Alarm number 6 of loop 3
Alarm number 6 of loop 4
–
–
–
–
–
–
–
–

Bit

Bit Status and Alarm Status

Corresponding Alarm

Bit Configuration of Register D7615 (for loops 5 and 6)

Note

• If data of a register related to an uninstalled loop is read, a “0” is returned.
• If the data of a register assigned to auto/manual/cascade switching, run/stop switching, or

remote/local switching is read immediately after the CX powers up or immediately after
reverting from the basic setting mode, “D1” may be returned.

Appendix 6 Register Assignments